What are the standards of the fresh air system
Jun 10, 2021
1. The fan
The quality of the fan has a great influence on the shelf life of the fresh air system. The performance parameters of the fan mainly include flow, pressure, power, efficiency, and speed. In addition, noise and vibration are also the main indicators for investigating fresh air fans. When users choose a fresh air system, they must also consider the two values of purification effect and fresh air volume. There are many models for the fresh air system to choose from, but different models also represent the size of the fresh air volume to a certain extent. The cabinet unit has a larger fresh air volume and is suitable for large places such as living rooms, while wall-mounted fresh air fans are suitable for Smaller occasions such as the bedroom. The purification effect of the fresh air system depends on the results tested by a special tester in a closed room.
2.The function
The fresh air system is significantly different from the air conditioner. It can realize air circulation, maintain air exchange with the outside, and filter outdoor PM2.5 and other pollutants to make indoor air fresh and clean. Generally speaking, the fresh air system integrates ventilation function, dust removal function, removal of home decoration pollution, room temperature adjustment, and humidity removal function, which can solve most indoor problems.
3.The noise level
Many people are particularly sensitive to sound. Therefore, when choosing a fresh air system, noise should be considered. The national central air-conditioning noise standard of sleep mode is 30 decibels.
4.The filter
The higher the filter level, the better the effect. The fresh air system, according to domestic standards, is divided into four grades: coarse efficiency, medium efficiency-medium efficiency, sub-efficient-high efficiency, and super high efficiency. That is to say, we are familiar with HEPA, the filter that reaches HEPA, H13 rating, the filtration efficiency of PM2.5 is as high as 99.95%. At present, there are two types of PM2.5 filtration technologies used in the fresh air system. One type of physical interception is to use high-efficiency filters to intercept particulate matter in the air. The other is electrostatic dust collection, which uses the principle of high-voltage electrostatic adsorption to remove particulate pollutants in the air, but it will produce ozone. This should be paid attention to when purchasing. It is best to choose pure physical filtration to ensure that the room is clean and safe.
5.Heat exchange function
The fresh air system with a full heat exchange function can effectively adjust the indoor and outdoor temperature and humidity, actively exhaust the dirty and humid air in the room in time and avoid the accumulation of humid air in the room.
