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Calculation formula for air filter cotton

2019-03-18

The air filter cotton has various kinds of filter materials such as polyester fiber cotton, glass fiber cotton and activated carbon cotton. Most of them are polyester fiber filter cotton, glass fiber cotton is used in high temperature conditions, activated carbon filter cotton is used to remove odor and purify air.

Calculation formula for air filter cotton: V=L/A/3600

A is the area of air filtration, calculated in m2;

L is the air volume, and the unit is calculated by m3/h;

V is the wind speed, and the unit is calculated in m/s;

3600 means 3600 seconds.

Filter cotton is divided into primary effect and medium effect. The wind speed of 15mm thick primary effect cotton is generally 3m/s; the wind speed of 20mm thick primary effect cotton is generally 1.5/s-1m/s; 22mm thick medium effect cotton such as The wind speed of the ceiling cotton in the paint booth is 0.25m/s.

Under normal circumstances, the effect of wind speed on air filter cotton and air filter is that the slower the wind speed, the better the effect of the filter cotton filter, and the smaller particle dust is more easily captured by the filter cotton filter. Most people think that the higher the wind speed, the higher the air filtration efficiency. In fact, the opposite is true, the smaller the wind speed, the higher the air efficiency.

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