Meanwhile, air entered into the room can be purified because of a filtrationdevice and a third opening set inside the fresh wind ventilator;
同时，由于本发明的新风换气机中设有 过滤装置和第三开口，因此，可以对进入室内的空气进行净化处理；
2
During using this prduct, place the membrane on the filter head, and fixed it by pressing the funnel to make it an integrated filtrationdevice.
本系统在使用时，将滤膜放置于滤头上，并用滤杯固定压紧，形成一个完整的过滤装置。
3
The utility model relates to a rotary wheel type dust collector used for cleaning the collected dust in a blanking case of a dust collector of a dust filtrationdevice.