When installing a fan in the bathroom with your own hands, you should study the wiring. Connection will require laying energy supply, installing the device in the ventilation duct, sealing joints.

The rate of air exchange for industrial premises is in the range from 1 to 10 units. To determine the use of industry documents, SNiPs, standards.

Ventilation in the cellar consists of a pair of ducts in different corners of the room. Air begins to circulate if one is installed on the floor and the other on the ceiling 50 cm from the floor.

Silent exhaust fans for the bathroom can be very different. Each manufactured device is designed for different operating conditions.

Simple ventilation for a garage where vehicles are painted is not suitable. She simply will not be able to cope with the task that she is posed.

When choosing a humidifier, you need to decide for which room a humidifier is purchased. The budget also matters, and we will show you how to spend it.

The hood may have a round, oval, square or rectangular cross-section. It is desirable that the size of the smoke collector slightly exceed the parameters of a barbecue or barbecue.

In order for ventilation to work properly, it is necessary to calculate the area of ​​air ducts and fittings. They mainly affect system performance.

The calculation of the air exchange rate is based on the norm indicator, based on the type and purpose of the building. According to the calculation data table, it is found by the formula: L = Vpom * Kр (m3 / h).

The calculation of supply and exhaust ventilation is determined in cubic meters per hour. First of all, it is determined what height and area of ​​the room.

Ventilation ducts are divided into fireproof, stainless and others. But it is worth considering that the most used in the construction of the box is flexible and rigid.