The air filter refers to the air filter device, mainly has the coarse effect filter, the medium effect filter, the high school effect filter, the sub-high efficiency filter and the high efficiency filter five kinds of models, each model has the different standard and the use efficiency.

According to standard , the risk of airborne infection particles in #HVAC filtration systems may be reduced by upgrading to a minimum MERV-13.

The AstroPure 500 is the most versatile model, with numerous infection control applications for health care and commercial facilities.