Be alert to respiratory occupational hazards | Selection of respiratory protective equipment


Release time:

2023-04-04

As we all know, the vast majority of hazards that cause occupational diseases are respiratory. The primary way to prevent respiratory occupational hazards is to take engineering and technical measures to reduce the concentration of pollutants (such as dust concentration) in the working environment to the allowable range of hygiene standards. When engineering control measures still fail to meet the requirements of hygienic standards, personal respiratory protection is an effective prevention and control measure.

As we all know, the vast majority of hazards that cause occupational diseases are respiratory. The primary way to prevent respiratory occupational hazards is to take engineering and technical measures to reduce the concentration of pollutants (such as dust concentration) in the working environment to the allowable range of hygiene standards. When engineering control measures still fail to meet the requirements of hygienic standards, personal respiratory protection is an effective prevention and control measure.

The particulate matter that causes respiratory occupational hazards has to be mentioned. Particulate matter refers to solid, liquid or solid and liquid particulate matter suspended in the air, such as dust, smoke, mist and microorganisms. The size of the particle (aerodynamic diameter) is usually 0.01-100. Dust is just one type of particulate matter.

Respiratory diseases are caused by dust, such as coal workers' pneumoconiosis and silicosis caused by coal dust and rock dust, and asbestosis caused by asbestos dust; in addition, it also includes smoke, such as welder's pneumoconiosis caused by welding metal fume, lead fume caused by lead poisoning etc.

Hazardous pollutants

①  Contains: particles, toxic and harmful gases

②  The size of particulate pollutants in the air

③  The impact of hazardous pollutants

Diseases due to respiratory hazards

①   Pneumoconiosis

②  Heavy metal poisoning

02 Selection of respiratory protective equipment

Self-priming filter anti-particulate respirator
(Disposable mask)

The main body of the mask is mainly composed of filter material, with or without an exhalation valve. Generally, it cannot be washed and reused, and should be discarded after use.
No exhalation valve: Disposable dust masks that both inhale and exhale through the filter material are more common in industrial enterprises.

The choice of dust mask is related to the type (or nature) and concentration of the poison to be exposed to. Filtration efficiency is one of the key technical requirements of dust masks, which characterizes the protection ability of respirator filter elements against standard particles.

In the national standard, dust masks are divided into KN and KP. KN stands for non-oily particles (suitable for protecting coal dust), and KP stands for oily and non-oily particles.

The protection levels of non-oily particles are: KP90, KP95, KP100, and the filtration efficiency is: 90%, 95%, 99.97%.

The protection grades of oily particles are: KN90, KN95, KN100, and the filtration efficiencies are: 90%, 95%, 99.97%.

Implement the GB2626-2019 standard "Respiratory Protective Equipment-Self-priming Filter Type Anti-particulate Respirator".


Self-priming filter gas half mask

It is composed of dust filter element, exhalation valve, inhalation valve, headband, half mask, etc. According to the different filter elements selected, it can not only protect against breathing hazards such as dust, smoke, mist and other particulate matter, but also protect against harmful gases or steam.

Goma self-priming filter anti-virus half mask series can be used with filter boxes and filter cotton.
The mouth and nose mask is made of silicone material, which is soft to the touch; quick bayonet design, good air tightness, and quick and convenient connection with the filter element; decompression head frame, wide area of force, easy to wear; the overall structure is simple, easy to disassemble and maintain, and can be cleaned ; And it is suitable for wearing a safety helmet and protective glasses for operation, and it can be washed with water more conveniently.

Self-priming filter anti-virus full-face mask

It is mainly composed of the main body of the mask and the filter element, which can provide combined protection for the face, eyes, and breathing. In terms of respiratory protection, according to the different filter elements selected, it can not only protect against respiratory hazards such as dust, smoke, mist, etc. Protects against harmful gases or vapours.

If the environment where splashed liquid or poisonous gas is harmful to the skin, it is safer to wear a full-face mask with protective clothing.

Goma self-priming filter full-face anti-virus mask can be used with Goma filter tank and filter cotton.

The large spherical window design protects the user's face, eyes and respiratory system from poisoning, and has a good vision. The cover body is all made of silicone material injection molding, soft and elastic, comfortable to wear; the window is made of polycarbonate to ensure safety, and it is not easy to cause harm to the human body under external force; the five-point/six-point adjustable headband effectively relieves the head pressure; humanized portable design to meet the needs of different operators. Gaoma 1608-DS electroacoustic gas mask series is equipped with amplifying module, intercom module and drinking water module, with voice amplification function, wireless communication function and energy supplement function, which can realize face-to-face clear dialogue and wireless communication within a certain range after wearing it. , Prolong the working hours of personnel and improve work efficiency.

Workers working in an environment of particulate matter and chemical harmful factors must take good respiratory protection and choose appropriate protective equipment in order to effectively prevent occupational disease hazards.