HVAC Air Filter Efficiency And Classifications
2019-05-03
About air filters, different countries or regions have its different classifications according to their standards. Similarly, the requirements for cleanliness vary from industry to industry.Filters’ features :
1. Primary filter : it mainly used as a pre-filter for the fresh air inlet of the air conditioning system,
intercepting the large particle from atmosphere. Filtration efficiency is subject to filtration ≥5.0um particles.
2. Medium filter : it can be used as the final filter for general air conditioning systems and as a pre-filter for high efficiency filters in air conditioning systems. Mainly used to intercept 1-10um suspended particles, the efficiency is subject to filtration ≥1um particles.