Exhaust fan

In any room, be it a residential building or an industrial enterprise, there must necessarily be ventilation. After all, air plays a more important role in the room than at first glance it seems.

At the entrance to a residential house or office, the first thing that feels incoming is the smells. And heavy musty air, unpleasant odors can not only spoil the mood, but also worsen the state of health, reduce work capacity. Therefore, in the room are installed various devices that provide it with a pleasant "atmosphere".

The exhaust fan is often placed in the bathroom or in the kitchen to remove moist air and unpleasant odors from them.

Being very simple in design, this household appliance, with proper care, will create very few problems for the consumer.

In general, the exhaust fan refers to the axial variety of such devices. In it the impeller in the form of a propeller is mounted on the axis of the electric motor. The air enters it through the grate, installed in the front part, and, passing through the device, comes out.

The exhaust fan can be installed in the window, and with an additional short duct - and in the wall.

Some models are switched on manually, with the help of a switch, others - automatically, when the degree of humidity in the room reaches a certain level.

The exhaust fan will not work effectively if it is installed in an uncomfortable place for air intake, and accordingly, it can not remove the necessary amount of air from the room.

Depending on the room, where this household appliance will be installed, and the amount of air to be removed, a model of the appropriate capacity will be selected. Typically, based on the ability of the fan to replace the air up to fifteen times per hour in the kitchen, and up to twenty - in the bathroom with a shower.

Removed from this room "bad" air is usually replaced by fresh through the doorways. And if the exhaust fan is located close enough to the source of the air being replaced, it will only create local ventilation, without having any noticeable effect on the entire air space in the room.

Ideal for installing the device is a place directly opposite the door or other source of fresh air, so high that it is possible to draw out warm air that has the physical property of climbing up to the ceiling.

Ventilation in the bathroom is one of the main conditions for the comfortable operation of this room. According to experts, it is best to install an exhaust fan with a non-return valve. At the same time, before assembling it is recommended that you carefully inspect the ventilation shaft and assess the degree of blockage, since if the ducts are closed, the device will not function normally.

A non-return valve mounted on such a fan operates on the principle of preventing backflow of air in the ventilation system to prevent indoor air from entering the room immediately after the exhaust is turned off.

In the kitchen, the appliance should be mounted near the stove and oven so that it can easily remove all the odors from cooking and also the steam from boiling.

In many public places, including in large supermarkets, it is necessary to install a complex installation - a supply and exhaust fan, more precisely, two independent devices that operate on the principle of two counterflows of air masses: inflow and exhaust. On each of them, in addition to the device, they install their filters, their own automation, etc.