Why is the air rapid sand filters volume of hePA filter smaller?
1. First confirm whether the final resistance of the HEPA filter (that is, its reported value) is not the final resistance of the product in the process of use, and the final resistance value of the general HEPA filter is 400-600pa.
2. High efficiency filter front end initial effect filter, whether the medium effect filter has also reached the final resistance value, because of the previous initial effect, the medium effect mainly plays a role in protecting the high efficiency filter, if the front end of the initial effect of the medium effect filter reached the destruction value that also affects the air volume of the high efficiency filter.
3. The problem of the air conditioning unit is whether the air volume of the air conditioning unit has reached the air volume required for the entire purification space during the use process.

The main technologies fine bubble diffuser for removing particulate matter in the air are mechanical filtration, adsorption, electrostatic dust removal, negative ion and plasma methods, and electrostatic electret filtration. Mechanical filtration generally captures particles in the following 3 ways: direct interception, inertial collision, Brown diffusion mechanism, which has a good effect on fine particle collection but large wind resistance, in order to obtain high purification efficiency, the filter element needs to be dense and replaced regularly. Adsorption is the use of large surface area disc air diffuser and porous structure of the material to capture particulate pollutants, which is easy to block, and the effect of gas pollutant removal is more significant; Electrostatic precipitator is the use of high-voltage electrostatic field to ionize the gas so that the dust particles are charged to the electrode dust collection method, although the wind resistance is small, but the effect of capturing larger particles and fibers is poor, it will cause discharge, and cleaning trouble is time-consuming, easy to produce ozone, the formation of secondary pollution.