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How to choose a central air conditioning filter?

2018-10-24

As a temperature regulating device, central air conditioning can not only create a constant and comfortable temperature, but also improve the indoor air quality to a certain extent. This air quality improvement mainly depends on the central air conditioning filter, then what is the air conditioning filter, how to choose the central Air conditioning filter?

Air conditioning filter

The air conditioning filter is mainly used for air conditioning in the engine room, pre-filtration of the ventilation system, air-conditioning clean room air-conditioning filtration, high-efficiency filtration pre-filtration, and air compressor pre-filtration. The outer frame is a paper frame, an aluminum alloy frame, a galvanized frame, the filter material is a non-woven fiber felt, and a folding filter material is economical.

Air conditioning filter classification

According to the filter grade air conditioning filter, it is divided into primary filter, medium efficiency filter and high efficiency filter.

The characteristics of the primary filter: low cost, light weight, good versatility and compact structure. It is mainly used for primary filtration of central air conditioning and centralized ventilation systems. It is mainly used to filter dust particles above 5μm. The primary filter has three styles: plate type, folding type and bag type. The outer frame material is paper frame, aluminum frame and galvanized iron frame. The filter material is mainly made of non-woven filter material, and the protective net has double-sided sprayed wire mesh and Double galvanized wire mesh.

The medium efficiency filter is mainly used for collecting 1-5μm particle dust and various suspended solids, and is widely used in various air conditioning systems. The product is mainly bag-type structure, and the outer frame material is mainly made of aluminum alloy and galvanized steel plate. It can be used for primary filtration of air conditioning systems to protect the next level of filters and systems in the system. In places where air purification and cleanliness are not critical, the air treated by the medium efficiency filter can be sent directly to the room.

High-efficiency filters are mainly used in the microelectronics industry, precision instrumentation, medical and health, bioengineering and other industries. They are generally used as air end filtration for all kinds of clean rooms, clean tunnels and high-efficiency air outlets. The products are made of ultra-fine glass fiber filter material, hot sol as separator, special aluminum profile frame and so on. It mainly collects fine particles of 0.1 to 0.5 um.

From the classification, we can understand that in the central air conditioner where the requirements are not very strict, the primary effect filter and the medium efficiency air conditioner filter can be selected. At present, central air-conditioning is generally based on household or commercial use. There is no strict requirement for the filtration grade of the filter. In addition, the high-efficiency filter is expensive, so the air-conditioning filter is generally not recommended for central air-conditioning.

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