Before installing a win­dow fan, it is nec­es­sary to eval­u­ate its tech­ni­cal para­me­ters and capa­bil­i­ties, as well as the size of the room where the instal­la­tion is sup­posed to be. Mod­ern sys­tems have a reduced noise lev­el (25–30 dBA) and will not cause dis­com­fort in this regard. Spend­ing a small amount of elec­tric­i­ty, they at the same time pro­vide sig­nif­i­cant air exchange that meets san­i­tary stan­dards.

For a sim­ple device and a reli­able design of win­dow fans, an expen­sive ser­vice is not required — it is enough to peri­od­i­cal­ly clean its parts from dust.


Installing a win­dow fan is a sim­ple process and does not take much time. The device has a small weight and size, which allows you to install it direct­ly in the win­dow, cut­ting a hole in the glass of the appro­pri­ate size. In order to ensure a snug fit of parts and assem­blies at the instal­la­tion sites, spe­cial com­po­nents and fas­ten­ers are pro­vid­ed to ensure com­plete tight­ness. To elim­i­nate noise, noise-insu­lat­ing gas­kets are used, which are also advis­able to use dur­ing instal­la­tion.

How to choose

Photo: It's easy to get lost among the different types of fansIn order to make the right deci­sion, par­tic­u­lar atten­tion should be paid to the pow­er, per­for­mance and dimen­sions — these para­me­ters are of par­tic­u­lar impor­tance dur­ing instal­la­tion and fur­ther oper­a­tion. The most pop­u­lar option is the axi­al win­dow fan, which is char­ac­ter­ized by sim­ple design, high effi­cien­cy, and good aero­dy­nam­ic char­ac­ter­is­tics.

When choos­ing, the vol­ume (m3) and the pur­pose of the room are tak­en into account. So, for a bed­room, an air exchange rate (the num­ber of air changes per hour) is 2–4, for a liv­ing room — 3–6, for a toi­let — 6–10, for a kitchen — 10–15. Based on the required air exchange rate, you can cal­cu­late the required sys­tem per­for­mance by mul­ti­ply­ing the indi­cat­ed para­me­ters. So, for a kitchen of 10 m², a device with a capac­i­ty of at least 100 m³ / hour will be required.

An ana­logue of win­dow fans is a win­dow fan, which is installed in the win­dows, per­form­ing the same func­tions. In accor­dance with the size and shape of the win­dow, you can choose exact­ly the device that is most suit­able in a par­tic­u­lar case. A sep­a­rate, high-tech mod­el of this type is the fore-mount­ed sup­ply and exhaust fan, which pro­vides ide­al pos­si­bil­i­ties for clean­ing and fresh air sup­ply. To pro­tect against the ingress of air from the out­side in the “off” posi­tion, it is rec­om­mend­ed to pur­chase an inex­pen­sive ven­ti­la­tor with a cov­er.

The size of the device should cor­re­spond to the size of the win­dow or vent, with­out tak­ing up too much space and with­out inter­fer­ing with the pen­e­tra­tion of sun­light. It is also impor­tant that the shape and design of the device fit into the over­all inte­ri­or.

To ensure the removal (inflow) of air in large vol­umes, in some cas­es, win­dow three-phase fans can be used. Such fans have increased per­for­mance char­ac­ter­is­tics and are used as aux­il­iary in the gen­er­al ven­ti­la­tion sys­tem of indus­tri­al build­ings and struc­tures.


Depend­ing on the direc­tion of move­ment of the air medi­um, win­dow fans are divid­ed into:

  • exhaust;
  • sup­ply;
  • sup­ply and exhaust.

Exhaust fans, pro­vide an extract of espe­cial­ly pol­lut­ed air. This cat­e­go­ry includes kitchens, bath­rooms, toi­lets, small lab­o­ra­to­ries and work­shops.

A win­dow sup­ply fan will help to solve the issues of fresh air sup­ply to the office, to liv­ing rooms where there is no need to pre-extract pol­lut­ed air, and a slight­ly increased pres­sure of fresh sup­ply air will help to fresh­en the air in the room.

Photo: If necessary, the fan can be easily removed from the windowThe sup­ply and exhaust sys­tem is par­tic­u­lar­ly effec­tive, pro­vid­ing both the removal of pol­lut­ed air and the sup­ply of fresh air. A win­dow reversible sup­ply and exhaust fan can per­form these func­tions. Depend­ing on the need for clean­ing or fresh air sup­ply, devices of this type can per­form both spec­i­fied modes of oper­a­tion. To do this, the device is equipped with a reversible elec­tric motor pow­ered by a 220 V net­work.

Power supply

Photo: Model VO series 220Some mod­els of this type are equipped with trans­form­ers that reduce the mains volt­age to 12V and ensure com­plete safe­ty for users. Each mod­ern win­dow reversible fan is equipped with a posi­tion switch that allows you to man­u­al­ly switch speeds, oper­at­ing modes (sup­ply-exhaust), as well as turn the device on or off. If desired, you can order a device with a remote con­trol.

The inno­v­a­tive DC reversible DC motor has speeds up to 3000 rpm and low pow­er con­sump­tion. The DS motor is designed for 12V volt­age, oper­ates in a two-speed mode and has a reduced noise lev­el due to spe­cial design solu­tions. A par­tic­u­lar­ly attrac­tive fea­ture is its reli­a­bil­i­ty: the motor is pro­tect­ed against over­heat­ing, is designed for con­tin­u­ous oper­a­tion and does not require main­te­nance.


Win­dow fans are ful­ly adapt­ed to work in con­di­tions of tem­per­a­ture dif­fer­ence: chang­ing weath­er con­di­tions, espe­cial­ly in win­ter, do not affect their effi­cien­cy. A mod­ern house­hold exhaust win­dow fan has a hous­ing and most of the com­po­nents made of heat-resis­tant, shock-resis­tant, ther­mo­plas­tic ABS plas­tic, which equal­ly well per­ceives both high (up to +40 ° C) and low (up to 30–40 ° C) tem­per­a­tures out­side the win­dow, is resis­tant to expo­sure to ultra­vi­o­let rays.

The win­dow lou­vered fan, which extracts the exhaust air, is equipped with spe­cial devices — shut­ters, which auto­mat­i­cal­ly close smooth­ly when the device is turned off, thus pre­vent­ing back draft (air from out­side). A sim­pler device is a win­dow fan with a cov­er, in which a cov­er is pro­vid­ed to pre­vent the flow of air from the street, which can be closed man­u­al­ly if nec­es­sary.

Ease of main­te­nance, effi­cient oper­a­tion, inno­v­a­tive tech­ni­cal fea­tures and per­for­mance make win­dow fans increas­ing­ly pop­u­lar.

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