{"id":60142,"date":"2024-02-08T04:15:54","date_gmt":"2024-02-08T03:15:54","guid":{"rendered":"https:\/\/www.williwaw.eu\/8-bonnes-raisons-de-preferer-un-ventilateur-a-un-climatiseur\/"},"modified":"2025-07-07T16:46:21","modified_gmt":"2025-07-07T14:46:21","slug":"8-bonnes-raisons-de-preferer-un-ventilateur-a-un-climatiseur","status":"publish","type":"post","link":"https:\/\/www.williwaw.eu\/en\/8-bonnes-raisons-de-preferer-un-ventilateur-a-un-climatiseur\/","title":{"rendered":"8 good reasons to choose a fan over an air conditioner"},"content":{"rendered":"<h4><span style=\"font-weight: 400;\">We have compared these two solutions according to 8 criteria, which we detail below to help you choose the solution that&#8217;s right for you.<\/span><\/h4>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Silence<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Practical  <\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Energy<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Health<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Risks<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Aesthetics<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Maintenance<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Cost of use<\/span><\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #e85611;\"><strong>1.silence<\/strong><\/span><\/h3>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Preamble: noise doubles every 3 dB(A) decibels (see article on noise\/silence)<\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><b>Air conditioner :  <\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Mobile packaged air conditioners are very noisy (at least 50 dB(A), equivalent to the noise of a washing machine in operation), as the entire unit is located inside the room. Split&#8221; air conditioners have an outdoor unit that takes care of the noisiest and most &#8220;heating&#8221; tasks, to limit indoor discomfort. <\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Please note that the law defines a &#8220;tolerable&#8221; threshold for the neighborhood that must be respected: the addition of equipment must not increase noise by more than 5 dB(A) during the day and 3 dB(A) at night (<\/span><a href=\"https:\/\/www.legifrance.gouv.fr\/affichCodeArticle.do?cidTexte=LEGITEXT000006072665&amp;idArticle=LEGIARTI000006910540&amp;categorieLien=id\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">article R. 1334-33 of the French Public Health Code<\/span><\/a><span style=\"font-weight: 400;\">). The sound level of the external module of an air conditioner is at least  <\/span><a href=\"https:\/\/www.quotatis.fr\/conseils-travaux\/normes\/climatisation-et-pac\/climatisation-bruit-unite-exterieure\/#:~:text=Le%20bruit%20d&#039;un%20climatiseur,produisant%20moins%20de%2050%20d%C3%A9cibels.\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">45 dB(A)<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Beware, too, of the claims made by some air conditioner manufacturers for a &#8220;sound level&#8221; of around 20 dB(A), which corresponds to silence. A closer analysis of the technical data sheets reveals that this figure corresponds to a   <\/span><i><span style=\"font-weight: 400;\">sound pressure<\/span><\/i><span style=\"font-weight: 400;\"> without further indicator.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Sound pressure is measured at a given distance, while sound power is measured on the product.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">So beware of sound pressure values that are not associated with distance.  <\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The only recommendation we can make is to go and listen to the product.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><b>Fan :  <\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The noise generated by fans varies according to their &#8220;morphology&#8221;: the fewer blades a propeller has, the faster it must turn, and the faster it turns, the more audible vibrations it creates. The smaller the diameter of a propeller, the faster it must turn, and the more audible vibrations it creates. <\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">It should be noted that so-called &#8220;propellerless&#8221; fans actually have a small-diameter propeller hidden in the base, which rotates very quickly. This partly explains the high noise levels generated by this type of fan. In fact, you&#8217;ll often find that manufacturers of this type of fan only compare their noise levels to those of their older products.  <\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Grilles and other mechanical supports in the air flow also contribute to noise generation. Plastic grilles are noisier because they have a larger cross-section than metal grilles, while radial grilles are noisier than annular grilles because they obstruct the airflow in the central part. Sound power is proportional to the fan power selected, so the more speed settings the fan has, the more you can adjust the noise level. The best-performing fans can approach 40 dB(A), while the worst performers exceed 70 dB(A).   <\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><b>Williwaw:<\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The Williwaw is THE silent fan:  <\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">At low power, it emits just 33 dB(A), which is imperceptible even when used in a quiet room: when you&#8217;re sleeping or trying to concentrate at the office.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">At full power, it emits 47dB(A), which is 4 times quieter than fans without propellers for twice the flow rate.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The Williwaw&#8217;s silent prowess was made possible by a highly advanced design: a 9-blade propeller to reduce rotation speed, a digital motor for finer speed adjustment, spiral grilles to minimize obstructed surface and optimization work on water-drop sections on all mechanical supports around which the airflow circulates.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p style=\"padding-left: 40px;\"><a href=\"https:\/\/www.youtube.com\/watch?v=PU_uz9h2FXU\" target=\"_blank\" rel=\"noopener\">Watch the comparison video  <\/a><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #e85611;\"><b>2.practicality :  <\/b><\/span><\/h3>\n<h5><b>Air conditioner :<\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">To produce cold, you unfortunately have to produce heat. The heat produced must therefore be evacuated in some way. This is done either by installing the external diffusion module, or by direct evacuation via a pipe connected to the outside.  <\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">From an environmental standpoint, the impact on outdoor temperatures is direct:<\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">&#8220;<\/span><i><span style=\"font-weight: 400;\">If all Parisian homes were equipped with air conditioning, average electricity consumption during heatwaves would double, raising street temperatures by 3\u00b0C compared to a city with no air conditioning at all.<\/span><\/i><span style=\"font-weight: 400;\">.&#8221;<\/span><a href=\"https:\/\/iopscience.iop.org\/article\/10.1088\/1748-9326\/aa751c\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\"> Environmental Research Letters<\/span><\/a><\/p><\/blockquote>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Since it acts on the entire mass of air in the room, the air conditioner only produces its effect with a significant latency time, and this poses several problems:  <\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Thermal comfort is not immediate<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Power consumption kicks in before the cooling effect kicks in<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">It requires continuous operation to maintain the desired temperature, even in the absence of occupants.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">It takes a long time to cool a room, but it heats up quickly once the air conditioner is switched off.<\/span><\/li>\n<\/ul>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Stationary air conditioners have a number of constraints:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">They require costly installation work<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">They are subject to approval by the co-owners and\/or the Architectes des B\u00e2timents de France, since an evacuation module must be installed on the facade.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">They are essentially fixed, so they must be installed in each room to be cooled.<\/span><\/li>\n<\/ul>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Mobile air conditioners, on the other hand, require no installation work and can be moved to different rooms in the home, but need to be connected to the outside. They therefore impose new constraints:   <\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">the air-conditioning unit should be placed close to a window, which should be left ajar to allow the exhaust pipe to pass through  <\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The inevitable addition of heat through the outside window will further reduce the efficiency of the mobile air conditioner.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h5><b>Fan :<\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">To generate freshness, the fan acts on the air speed <\/span><span style=\"font-weight: 400;\">[[see article How a fan cools]]<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The fan is a highly flexible solution, since all you need to use a fan is a power outlet: no work required.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The fan has an immediate, local effect, so there&#8217;s no need to cool the whole house when you&#8217;re in a single room.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">However, fans suffer from a number of practical shortcomings:  <\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">They generate considerable noise pollution<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The airflow generated is too concentrated, producing freshness only in a restricted area.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Control devices are limited: manual fan control, infrared remote control, etc.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">They do not adapt the air flow generated to their environment<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The fan is only useful in hot weather, so put it away as soon as it&#8217;s no longer needed.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h5><b>Williwaw:<\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Williwaw takes the strengths of fans and eliminates the shortcomings of traditional fans:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The silence of the Williwaw is unique: for a very low noise level, the Williwaw generates a highly efficient air flow to cool people.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The airflow generated is broad and gentle, covering large spaces. Orienting the airflow vertically creates convection in the air mass, allowing all occupants of a room to be cooled. <\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Williwaw is fully controllable via a dedicated mobile application (IOS and Android)<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The Williwaw reacts intelligently to temperature exactly where you want to feel it, thanks to its remote temperature sensors.  <\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Thermostat mode: no more waking up in the middle of the night because it&#8217;s too cool, the Williwaw will automatically switch off when the temperature falls below the set threshold; no more babies who are too hot or too cold; no more elderly dependents who look at their fan when it&#8217;s switched off and say &#8220;I&#8217;m hot&#8221;, or when it&#8217;s switched on and say &#8220;I&#8217;m cold&#8221;.<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">Convection mode: when the temperature difference between floor and ceiling exceeds the selected threshold, the Williwaw automatically switches on to harmonize the temperature.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">The Williwaw is the first all-year-round fan. Under normal circumstances, heating systems of any kind generate 3 layers of air at different temperatures: this is thermal stratification.   <\/span><\/li>\n<\/ul>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">This superimposition needs to be broken to recover the heat already paid for but stagnating on the ceiling, and to harmonize the temperature to ensure optimum thermal comfort: this is destratification. <\/span><span style=\"font-weight: 400;\">[[ link to destratification ] ]<\/span><span style=\"font-weight: 400;\"> The Williwaw achieves this with its pivoting head, directing the flow of air from the bottom upwards to force the warm air downwards, where it mixes with the other layers of air: this is the convection mode.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #e85611;\"><b>3. Energy<\/b><\/span><\/h3>\n<h5><b>Air conditioner <\/b><b>:<\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Among the 6 parameters of thermal comfort, air conditioners play on the &#8220;ambient temperature&#8221; parameter. <\/span><span style=\"font-weight: 400;\">[[read the article on the 6 keys to thermal comfort]]<\/span><span style=\"font-weight: 400;\"> Yet this parameter is the most energy-intensive to modify.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">This means a minimum consumption of 2500W. The most commonly used rule of thumb is 110W per m2 of room surface to be cooled, plus 200W per person present. <\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Cooling with air conditioning means refrigerating all the air in an enclosed space. The larger the volume of the space, the greater the   <\/span><a href=\"https:\/\/www.sortirdunucleaire.org\/revanche-ventilateur\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">need energy to cool the people<\/span><\/a><span style=\"font-weight: 400;\"> people in the space.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Because of the time it takes for a room to cool down, it&#8217;s common for a place to be air-conditioned even when it&#8217;s unoccupied, to provide immediate comfort on entering. This is a major source of   <\/span><a href=\"https:\/\/www.sortirdunucleaire.org\/revanche-ventilateur\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">waste of energy<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">What&#8217;s more, air-conditioning requires an enclosed <\/span><a href=\"http:\/\/www.geothermique.com\/installation.html\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">enclosed space<\/span><\/a><span style=\"font-weight: 400;\"> to prevent the refrigerated air from escaping, which in the case of mobile air conditioners is made impossible by the need to provide an outlet to the outside. <\/span><a href=\"http:\/\/www.geothermique.com\/installation.html\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">outlet to the outside<\/span><\/a><span style=\"font-weight: 400;\">.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Aware of the energy aberration caused by the use of air conditioning, the Swiss law <\/span><b>energy law<\/b><span style=\"font-weight: 400;\">  drastically regulates the installation of air conditioners in the name of sustainable development. In some cantons, authorization is required to install an air-conditioning system.   <\/span><i><span style=\"font-weight: 400;\">comfort<\/span><\/i><span style=\"font-weight: 400;\"> and the criteria for obtaining them are very strict.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Inspectors carry out checks to ensure compliance with the law.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><b>Fan :<\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">With power consumption ranging from 5 to 70 Watts, fans are a much more energy-efficient way of dealing with heat peaks than air conditioners. Their conventional motors generate heat and wear, which means they are not optimally efficient.   <\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><b>Williwaw:  <\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The Williwaw is very energy-efficient, needing just 5 W to give you a good night&#8217;s sleep when it&#8217;s 29 degrees. At full power, just 48 W create general convection to keep everyone cool. This performance is made possible by the use of a digital motor with no overheating or wearing parts, coupled to a 9-blade propeller with unrivalled efficiency: 1.28 m3\/min\/W according to EN60704-2-7.  <\/span><\/p>\n<p>&nbsp;<\/p>\n<p><b>NB:  <\/b><\/p>\n<p><i><span style=\"font-weight: 400;\">Solutions that reduce the consumption of ventilation and heating\/air-conditioning equipment in the home are particularly relevant, since this equipment now accounts for <\/span><\/i><a href=\"https:\/\/tel.archives-ouvertes.fr\/tel-00976019\/document\" target=\"_blank\" rel=\"noopener\"><i><span style=\"font-weight: 400;\">75% of consumption <\/span><\/i><\/a><i><span style=\"font-weight: 400;\">in the French residential sector<\/span><\/i><span style=\"font-weight: 400;\">. <\/span> <\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #e85611;\"><b>4. Health<\/b><\/span><\/h3>\n<h5><b>Air conditioner :<\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Air conditioning <\/span><a href=\"https:\/\/www.rtl.fr\/actu\/bien-etre\/les-climatiseurs-sont-ils-dangereux-pour-la-sante-7793751335\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">dries out the air<\/span><\/a><span style=\"font-weight: 400;\">which can weaken mucous membranes (nose, mouth, throat), leaving skin and eyes drier. <\/span> <\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Excessive temperature differences between outside and inside air can cause thermal shock.  <\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Its use is also frequently associated with contractures, a reflex contraction of certain muscles that can last for several hours.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The air-conditioning <\/span><a href=\"https:\/\/www.e-sante.fr\/quels-sont-vrais-risques-climatisation\/actualite\/983\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">can be<\/span><\/a><span style=\"font-weight: 400;\"> serious pathologies such as legionellosis (hundreds of cases of <\/span><a href=\"https:\/\/www.rtl.fr\/actu\/bien-etre\/les-climatiseurs-sont-ils-dangereux-pour-la-sante-7793751335\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">hundreds of cases of legionellosis<\/span><\/a><span style=\"font-weight: 400;\"> have been reported in France over the past 20 years). The water formed by condensation stagnates in a tank inside the air conditioner: if not emptied regularly, it can become a veritable nest of microbes. If not emptied regularly, it can become a veritable breeding ground for microbes, spreading rapidly and widely, leading to pulmonary infections, and even respiratory failure and pneumopathy in the most vulnerable individuals.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><b>Fan :<\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">During the day, intensive use of a fan too close to the face can dry out the cornea.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The health risks of using a fan to sleep are debated.  <\/span><\/p>\n<blockquote>\n<p style=\"padding-left: 80px;\"><span style=\"font-weight: 400;\">L<\/span><a href=\"https:\/\/www.sciencesetavenir.fr\/sante\/sommeil\/canicule-dormir-avec-un-ventilateur-est-il-bon-pour-la-sante_126394\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">he study on <\/span><i><span style=\"font-weight: 400;\">optimal conditions for sleep<\/span><\/i> <\/a><span style=\"font-weight: 400;\">by Nasa circadian cycle specialist Eryn Flinn Evans concludes that &#8220;<\/span><i><span style=\"font-weight: 400;\">fans seem to be useful for sleeping to improve circulation in the room, for example by preventing pockets of CO2 in the environment (&#8230;). However, we also found a study showing that many people dislike high-intensity airflow on their skin. Based on these results, we recommended that people use a fan to circulate the air at night, but have the option of directing the airflow in their preferred direction.  <\/span><\/i><span style=\"font-weight: 400;\">&#8220;<\/span><\/p>\n<\/blockquote>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The fan can dry out the mucous membranes, especially when it runs continuously while you sleep and directly in your direction. Given the principle of cooling by evaporation of micro-transpiration   <\/span><span style=\"font-weight: 400;\">[[green link How a fan cools down ]]<\/span><span style=\"font-weight: 400;\">especially for the elderly, regular hydration is essential to avoid the risk of dehydration.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><b>Williwaw:  <\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The wide, gentle flow generated reduces the risk of drying out mucous membranes and\/or corneas. What&#8217;s more, the Williwaw is the first fan to offer indirect airflow, thanks to its pivoting head: the airflow can be directed towards a wall or ceiling to generate a much more diffused indirect ventilation. <\/span><\/p>\n<h3><\/h3>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #e85611;\"><b>5. Risks<\/b><\/span><\/h3>\n<h5><b>Air conditioner :<\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Overall :<\/span><\/p>\n<blockquote><p><span style=\"font-weight: 400;\">&#8220;<\/span><i><span style=\"font-weight: 400;\">The 1.6 billion air conditioners installed worldwide generate <\/span><\/i><a href=\"https:\/\/bfmbusiness.bfmtv.com\/entreprise\/comment-la-climatisation-va-faire-exploser-la-demande-mondiale-d-electricite-1457946.html\" target=\"_blank\" rel=\"noopener\"><i><span style=\"font-weight: 400;\">10%<\/span><\/i><\/a><i><span style=\"font-weight: 400;\"> of the world&#8217;s electricity consumption&#8221;.<\/span><\/i><span style=\"font-weight: 400;\">. <\/span> <\/p><\/blockquote>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">It is therefore urgent to find an alternative to their use.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">At local level :<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Air conditioners use refrigerants for cooling. The latest-generation fluids are often referred to as &#8220;natural&#8221; fluids. However, they are hydrocarbons: R290 and R600a are the most common and are called propane and iso-butane respectively.    <\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The use of these refrigerants makes the use of <\/span><b>air conditioners <\/b><span style=\"font-weight: 400;\">risky in several respects:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">For the environment: in the event of fluid leaks. R290 and R600a fluids, for example, have   <\/span><a href=\"http:\/\/aicvf.org\/lorraine\/files\/2017\/07\/170612_RT_preso_Fluides-frigo_AFPA-Metzf.pdf\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">3x<\/span><\/a><span style=\"font-weight: 400;\"> more impact on global warming than CO2<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">They are <\/span><a href=\"https:\/\/www.hvac-intelligence.fr\/fluide-frigorigene-naturel\/\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">highly flammable<\/span><\/a><span style=\"font-weight: 400;\">. It is advisable to pay close attention to the quantities of these fluids contained in your appliances, for safety and safety reasons.  <\/span><a href=\"https:\/\/www.batirama.com\/article\/16194-l-horizon-s-eclaircit-pour-le-fluide-frigorigene-r32-en-erp.html\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">insurance<\/span><\/a><span style=\"font-weight: 400;\"> in case of fire<\/span><\/li>\n<li style=\"font-weight: 400;\"><span style=\"font-weight: 400;\">In the event of a leak, these gases are toxic for occupants who come into contact with them.<\/span><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h5><b>Fan :<\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">As far as the fans are concerned, there are no risks to report, as they use no hazardous substances. They operate purely mechanically, using a motor to turn the propeller that generates the airflow. <\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><b>Williwaw:  <\/b><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">At Williwaw, you&#8217;ll sleep peacefully and save money!<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #e85611;\"><b>6. Aesthetics  <\/b><\/span><\/h3>\n<h5><strong>Air conditioner :  <\/strong><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Mobile air conditioners, with their trunk-like appearance on wheels, are difficult to blend into the d\u00e9cor. When they&#8217;re not outright banned by the Architectes des B\u00e2timents de France, fixed air conditioners impose their ugly exterior casings on the facades of the buildings they equip. Inside, their large, high-mounted casings and diffuser grids are extremely difficult to integrate.  <\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><strong>Fan :  <\/strong><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Devoid of any aesthetic bias, standard fans are very often hidden away as soon as their use is no longer essential.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><strong>Williwaw:  <\/strong><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The Williwaw has been designed to blend into your interior as a real piece of furniture. Its Scandinavian-inspired style, subtly blending wood and lacquered white, makes it a timeless object. Simplicity of form and use conceal the technical complexity that ensures the Williwaw&#8217;s performance, making it an example of &#8220;simplexity&#8221;.  <\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">[[Link to article &#8220;simplexity]]<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #e85611;\"><b>7. Maintenance<\/b><\/span><\/h3>\n<h5><span style=\"font-weight: 400;\"><strong>Air conditioner<\/strong>:<\/span><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">To limit the risk of malfunctions and prevent leaks of harmful air-conditioning gases, routine maintenance must be carried out every year. The regulations governing air-conditioning leakage control require maintenance to be carried out by a certified operator. Ideally, an air conditioner&#8217;s filters should be cleaned every    <\/span><a href=\"https:\/\/www.travaux.com\/climatisation\/guide-des-prix\/prix-de-lentretien-dune-climatisation\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">2 \u00e0 3<\/span><\/a><span style=\"font-weight: 400;\"> weeks. <\/span> <\/p>\n<p>&nbsp;<\/p>\n<h5><span style=\"font-weight: 400;\"><strong>Fan<\/strong>:  <\/span><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">To keep your fan running smoothly and clean, we recommend regular cleaning of the impeller and grille.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><span style=\"font-weight: 400;\"><strong>Williwaw<\/strong>:  <\/span><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">  Maintenance is made as easy as possible: the propeller and removable grid are dishwasher-safe.  <\/span><a href=\"https:\/\/www.youtube.com\/watch?time_continue=1&amp;v=l0hErY2ce7s&amp;feature=emb_title\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">Propeller disassembly video<\/span><\/a><\/p>\n<h3><\/h3>\n<p>&nbsp;<\/p>\n<h3><span style=\"color: #e85611;\"><b>8. Cost of use<\/b><\/span><\/h3>\n<h5><span style=\"font-weight: 400;\"><strong>Air conditioner<\/strong>:<\/span><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">The purchase price of an air conditioner starts at 300\u20ac for single-package mobile units and goes up to<\/span><a href=\"https:\/\/www.wivaldy.com\/appareils-electriques\/consommation-climatiseur\/#gref\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\"> 900 (excluding installation costs by a specialized installer)<\/span><\/a><span style=\"font-weight: 400;\">  for stationary air conditioners. As you move upmarket, prices quickly exceed \u20ac2,000.   <\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Added to this is the average cost of maintaining an air conditioner, which is more than <\/span><a href=\"https:\/\/www.calculeo.fr\/Eco-travaux\/La-climatisation\/Entretien-d-une-climatisation\" target=\"_blank\" rel=\"noopener\"><span style=\"font-weight: 400;\">200 per year<\/span><\/a><span style=\"font-weight: 400;\"> and annual maintenance packages are available.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Finally, there&#8217;s the cost of electricity consumption:<\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><span style=\"font-weight: 400;\"><strong>Fan<\/strong>:  <\/span><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">At the outset, a fan costs a few dozen euros for entry-level models, and up to 800 euros for the most powerful.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">No maintenance costs and almost negligible electricity costs.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">As part of an eco-responsible approach, we advise you to choose a product that is robust by design, and to take into account its warranty conditions.  <\/span><\/p>\n<p>&nbsp;<\/p>\n<h5><span style=\"font-weight: 400;\"><strong>Williwaw<\/strong>:<\/span><\/h5>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">Quiet, useful, durable, powerful and economical, Williwaw is the credible alternative to air conditioning in summer.<\/span><\/p>\n<p style=\"padding-left: 40px;\"><span style=\"font-weight: 400;\">What&#8217;s more, with the added benefits of convection mode for de-stratification in winter, the Williwaw is an investment that will quickly pay for itself in energy savings. [<\/span><span style=\"font-weight: 400;\">[read article on destratification<\/span><span style=\"font-weight: 400;\">]]<\/span><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Comparison of air conditioner vs Williwaw running costs:<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><span style=\"font-weight: 400;\">Appliance :<\/span><\/td>\n<td><b>Air conditioner<\/b><\/td>\n<td><b>Williwaw<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Power (W) :<\/span><\/td>\n<td><span style=\"font-weight: 400;\">2500<\/span><\/td>\n<td><span style=\"font-weight: 400;\">15<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Price kWh (\u20ac) :<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,14<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,14<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Operating time\/day (h) :<\/span><\/td>\n<td><span style=\"font-weight: 400;\">15<\/span><\/td>\n<td><span style=\"font-weight: 400;\">15<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Cost per day :<\/span><\/td>\n<td><span style=\"font-weight: 400;\">5,25 \u20ac<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,03 \u20ac<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Cost per month :<\/span><\/td>\n<td><span style=\"font-weight: 400;\">157,50 \u20ac<\/span><\/td>\n<td><span style=\"font-weight: 400;\">0,95 \u20ac<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h1 style=\"text-align: center;\">Still in doubt? Come and test our <a href=\"https:\/\/williwaw-simulateur.bubbleapps.io\/version-test\" target=\"_blank\" rel=\"noopener\">comparator<\/a> <\/h1>\n","protected":false},"excerpt":{"rendered":"<p>We have compared these two solutions according to 8 criteria, which we detail below to help you choose the solution that&#8217;s right for you. &nbsp; Silence Practical Energy Health Risks Aesthetics Maintenance Cost of use &nbsp; 1.silence Preamble: noise doubles every 3 dB(A) decibels (see article on noise\/silence) &nbsp; Air conditioner : Mobile packaged air [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":57485,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[23,66],"tags":[71,68,70,69],"class_list":["post-60142","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-categorise","category-at-home","tag-cooling","tag-ecology","tag-savings","tag-silence-en"],"jetpack_featured_media_url":"https:\/\/www.williwaw.eu\/wp-content\/uploads\/2020\/03\/Ventilateur-design-durable.webp","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.williwaw.eu\/en\/wp-json\/wp\/v2\/posts\/60142","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.williwaw.eu\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.williwaw.eu\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.williwaw.eu\/en\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/www.williwaw.eu\/en\/wp-json\/wp\/v2\/comments?post=60142"}],"version-history":[{"count":0,"href":"https:\/\/www.williwaw.eu\/en\/wp-json\/wp\/v2\/posts\/60142\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.williwaw.eu\/en\/wp-json\/wp\/v2\/media\/57485"}],"wp:attachment":[{"href":"https:\/\/www.williwaw.eu\/en\/wp-json\/wp\/v2\/media?parent=60142"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.williwaw.eu\/en\/wp-json\/wp\/v2\/categories?post=60142"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.williwaw.eu\/en\/wp-json\/wp\/v2\/tags?post=60142"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}