Coronaviruses are a large family of viruses that are common in both humans and animals. There are currently seven strains of human coronaviruses that have been identified. Four of these strains are...
The HEPA filter should be replaced in any of the following cases:
Table 10-6 Clean air monitoring frequency of clean room
Cleanliness level
Test items
1~3
4~6
7
8, 9
Temperature
...
1. All types of air filters and HEPA air filters are not allowed to tear or open the bag or packaging film by hand before installation; the air filter should be stored in strict accordance with the...
HEPA filter is the main filter used in most air purifiers. It is mainly used to filter small molecular particles dust and various suspended solids with a diameter of more than 0.3μm. The price gap ...
Problem Description: HVAC personnel reflect that the initial filter of the new fan is easy to accumulate dust, the cleaning is too frequent, and the service life of the primary filter is too short....
1. Intercept the dust particles in the air, move with inertial motion or random Brownian motion or move by some field force. When the particle motion hits other objects, the van der Waals force exi...
