Dry filter, also known as G4 filter, can completely remove dust and also intercept a small amount of water vapor carried out from the wire mesh demister. Its principle is to separate particles from exhaust gas by changing the direction of their inertial force through material fibers. The multiple fibers gradually densified by the material increase the impact rate and improve the filtration efficiency. The dry filter is filled with fiber material, which can effectively pass through different combinations of filter materials during filtration, utilize material space to accommodate, and achieve higher filtration efficiency. This is a unique performance of dry materials that cannot be compared to water washing methods. Dry filter materials turn into loose powder dust, which can be repeatedly used by tapping and shaking after saturation, reducing the cost of use. The fiber surface of the filter material is treated with flame retardant to prevent aggregation and fire hazards. All equipment does not require a water pump or anti-corrosion, and the equipment structure is simple with low investment.

Advantages of dry filters:

(1) Dry purification, no water required, no secondary pollution, environmentally friendly and energy-saving.

(2) High purification efficiency, with a purification efficiency of up to 99%.

(3) The device has low resistance during operation.

(4) The equipment has a simple structure and is easy to maintain and repair.

(5) Flame retardant, safe, long service life, and can be reused multiple times.