At present, different family environments are more stringent in the selection of household fresh air fans. A suitable household fresh air fan generally has a better practical experience and practical effect. Customers should choose it comprehensively according to their own and the reasonable layout of their homes. In this way, we can ensure the high cost performance of household fresh air fans and the ideal practical effect of natural ventilation. Next, fresh air manufacturers will come together to learn how to choose the appropriate air volume for household fresh air fans?

Generally, the determination of the air volume at home can be based on the design air change frequency of the indoor space. Generally, the air change frequency is taken as 0.5 times /h. A very simple estimation method is to take the standard value of the building area as the standard value of the ventilation volume per hour of the residence. For example, for a house with a building area of 130 square meters, the ventilation volume per hour is 130 cubic meters.

But this standard value is not the air volume of the equipment you have to buy, because the air volume of the general equipment sign is in the absence of external friction. When the pipe is set, the air volume will be harmed by friction. Therefore, the air volume of the selected equipment is generally the standard value obtained in front divided by 1 index, which can be taken as 0.7 ~ 0.8; Increase the air volume as much as possible, which can fully ensure the actual ventilation effect in the room, and the equipment is equipped with an air volume adjustment control circuit, which can be adjusted at any time according to the need; If the equipment is smaller, there is no way.