Both the fresh air system and the exhaust fan contribute to solving the indoor ventilation problem

Update:16-05-2019
Summary:

Both the fresh air system and the exhaust fan contribut […]

Both the fresh air system and the exhaust fan contribute to solving the indoor ventilation problem, but they are two completely different concepts, which are very different.
Exhaust fans generally have a large amount of exhaust air, but their exhaust air does not organize a reasonable pressure field and airflow path, and can only achieve partial space exhaust, indoor and outdoor air can not reach circulation, and there are too many new wind dead angles.

The fresh air system has air supply and exhaust vents, which can not only exhaust the air, but also send fresh air into each room to completely remove indoor odor, decoration pollution, dust, bacteria, etc., and supplement the outdoor fresh air. The fresh air circulation path is 360° cycle, and the dead space in the house can also achieve a good purification effect, thus keeping the indoor air fresh.

Second, the filtering effect

The exhaust fan can't purify the air at all, although it can alleviate the problem of indoor oxygen deficiency to a certain extent, but the air entering the room does not pass any filtration, and still pollutes the air.

The fresh air system has a filtering function that can complete air purification. The outdoor air is deeply purified by the multi-layer filter before being sent into the room, and at the same time, the air is continuously interrupted, and the truly fresh and pure air is introduced into the room, thereby ensuring the health of the home life.