1. The natural ventilation air inlet should be set on the side of the prevailing...

1. The form of the vent should strive to meet the requirements for the formation...

1. The size of the central air-conditioning access port is generally 400mm*400mm...

First, in any case, the floor drain can completely deodorize. The anti-odor func...

Speaking of the structure of the central air conditioner, there are many air ven...

The access panel can be made of roof ventilation holes by two methods，concealed ...