1. For commercial environments with high pollution and high humidity such as hot pot restaurants and public baths, the ventilation system without filter should be selected.

For example, some customers reported that a fully heat-exchange filter ventilator installed in a public bath was scrapped after just one week of use. The reason is simple. A large amount of water vapor and heat cause components to age quickly. Therefore, it is most recommended to use a model with a single exhaust function and do not perform unnecessary actions!

2. When installing a ventilation system in a place with a large number of private rooms, the installation process of air distribution box and PE pipe must be used to ensure uniform air volume in each room!The most typical case is KTV, which has as few as thirty private rooms and as many as forty or fifty, and the branch method cannot be used. At the same time, live broadcast rooms, B&Bs, etc. all fall into this category.

There are two ways to fix the bellows: one is to fix it with screws, and the other is to fix it with structural glue. It is recommended to use structural glue for easier fixing and can further seal. In fact, all the interfaces of the ventilation system pipes need to be sealed with glue. If you hear a "whistling" sound, it is likely that there are gaps in the interfaces.