Particles, gases and harmful substances in vapor state can enter the human body through the respiratory tract. Respiratory inhalation is the main way of pneumoconiosis and occupational poisoning, how to do a good job of respiratory protection is the key to prevent occupational diseases, Puda air respirator manufacturer to take you to understand:

Occupational protection in the common harmful to the breathing of harmful substances are mainly divided into four categories: First, particulate matter is a common occupational hazard factors in industrial production. It is suspended in the air solid, liquid or solid and liquid mixed particles, such as dust, smoke and fog. It mainly affects our respiratory system, skin and eyes. The smaller the particles and the longer they are suspended, the more likely they are to be inhaled.

Second, dust is tiny solid particles suspended in the air, usually produced by the breaking of solid materials by mechanical forces. It can be suspended in the air for a long time, mainly produced by a variety of crusher on the crushing of large materials, conveyor belt conveying process of material falling and collision. Falling dust in the workplace that is not cleaned up in time will rise under the action of external forces, resulting in secondary dust.

Third, the smoke is dispersed in the air in the diameter <0.1 μ M solid particles. It occurs mainly in the heating sublimation and incomplete combustion of materials. Harmful fumes from metal smelting, welding, etc., and fumes naturally volatilized from straw combustion are common in the workplace.

Fourth, fog is dispersed in the air droplets, mostly formed by vapor condensation or liquid dispersion. In industrial production, paint mist is mainly generated in the painting operation.