Is it possible to choose to wash the primary filter without replacing the filter media during use? Theoretically it is not possible to wash with water.

The metal filters used in primary filters for primary use feel distinctive. The choice of filter material is basically the same as disposable paper frame in theory, and the production of metal frame is limited by structure and cost. Metal frame coarse filters use non-woven fabric as the filter material. It should be noted, however, that some users often require filter manufacturers to use washable filter media.

Theoretically, as long as any filter material is washed with water (including rinsing), the performance of the filter is not good, so all parameters are unqualified, and the filter will be directly scrapped in serious cases. Even some filters that can be rinsed during use will seriously reduce the filtration efficiency. The correct way to use is to replace the filter element.

The primary filter material of the primary filter is non-woven fabric, glass fibre, etc., which is supported by the keel support and made into a plate-like structure. It has the characteristics of durability, long life, washable, economic and durable. The preliminary roughing air filter is used for the pre-filtration of central air-conditioning and centralised ventilation systems, and the pre-filtration of gas turbines and air compressors. The preliminary design of air filter structure is divided into keel frame and frame frame. The keel is sturdy and the filter media is uniform, but the production cost is higher. The frame structure is characterised by easy filter media replacement and labour-saving production, but it is slightly weaker than the keel.

Washable non-woven fabric, activated carbon, synthetic fibre, chemical fibre, glass fibre, glass fibre, nylon. Usually non-woven, glass fibre. Rough or medium efficiency can be achieved.