Single room heat recovery units tend to be more efficient than traditional extract ventilation systems, but are not as complex to install as the centralised packaged units that you tend to have for the whole building.
In recent years, indoor air purification equipment on the market has been selling well. Following the air purifier, household ventilation fan with air purification and ventilation and ventilation functions (such as silent duct fans, wall-type fans, wall-mounted fans) .
The fresh air fan belongs to external circulation. The fresh air greenhouse fan introduces outdoor air into the room and then discharges indoor dirty air out of the room through micro positive pressure, positive pressure and negative pressure.
Why can you evolve the air in the room by installing a fresh air system?
Because the fresh air system allows the air to be put into the room after the air is purified before entering the room, the purification rate is as high as 99.8%, which is enough to ensure that the indoor air is almost free of pm2.5 particles. This is the power of the fresh air system!