Important filtration mechanisms for air equipment

What are the different aspects of the filtration mechanism of professional air equipment?

I. Hitting and sticking

Pollution particles in the air will do inertial movement with the airflow, or irregular movement, or be moved by some kind of action, and in the process the particles will hit the obstacle, where the gravitational force present will make it stick to the obstacle and thus be adsorbed.

II. Fibre filter material

Advanced equipment using this material, the role is to effectively intercept the dust particles in the air, but also does not cause too much resistance to the passage of airflow, mixed interwoven fibres also form a myriad of barriers, only the airflow can pass and dust particles can not pass.

III. The principle of inertia

Many dust particles in the airflow are doing inertial movement, and the airflow will go around when encountering obstacles, the larger the particles the stronger the inertial force, the greater the possibility of hitting the obstacles, the better the filtering effect.

IV. The principle of diffusion

As we said above, tiny particles make irregular movements, and the smaller the particles, the stronger the irregular movement, the more chances of hitting the obstacle, and the better the filtering effect.

What is filtration efficiency? Here we need to know that particles smaller than 0.1μm mainly move by diffusion, the smaller the particles the higher the efficiency; particles larger than 0.5μm mainly move by inertia, the larger the particles the higher the efficiency.