What types of fresh air systems are there?

1. According to the different installation methods, it can be divided into:

Central fresh air system

The fresh air volume of the central fresh air system is large, and one device can meet the fresh air needs of the whole house. The full heat exchange can also recover temperature and humidity. However, the installation of this type of fresh air fan is very cumbersome.

Wall-mounted fresh air system

The wall-mounted fresh air system only needs to make a ventilation hole on the wall, and then hang the machine on the wall to use it. It can be easily installed before or after decoration.

Cabinet fresh air fan

There are ducted types that can deliver fresh air to every room in the room, but the installation is more complicated. There are direct blowing ones, which are used for ventilation of a single large room.

2. According to the different air supply methods, it can be divided into:

One-way flow fresh air system-it is divided into positive pressure one-way flow and negative pressure one-way flow. Positive pressure is forced air supply and natural exhaust, and negative pressure is natural air supply and forced exhaust.

Two-way flow fresh air system-forced air supply and forced exhaust, divided into sensible heat exchange and full heat exchange.