Introducing The Four Levels Of Protective Coveralls

Protective Coveralls is a kind of impermeable clothing that is worn all over the body. It belongs to a class of protective equipment and is used for the protection of dangerous goods and epidemic prevention. A self-contained breathing apparatus (SCBA) is usually also provided when wearing protective clothing to ensure that the wearer has enough oxygen for breathing. In toxic environments, firefighters, emergency rescue technicians, paramedics, researchers, poisoning responders, and facility decontamination experts work in protective clothing.

Class A protective clothing is airtight protective clothing, which has the best protection ability for the respiratory and skin systems. Faced with the leakage of a large number of corrosive gases or vapors whose concentration has reached an immediately dangerous concentration (IDLH), the leakage is easily absorbed by the skin or the leakage of unknown objects, the most complete protection ability must be used. Class A protective clothing.

The composition of Class A protective clothing is as follows:
Anti-vapor (airtight) chemical protective clothing
Positive pressure full self-contained breathing apparatus
Inner anti-chemical gloves, anti-chemical boots
Other equipment: communicator, helmet, etc.

Class B protective clothing

Class B protective clothing. The wearer wears the self-contained breathing apparatus on the outside of the protective suit.
Class B protective clothing is a non-airtight one-piece protective clothing, and the respiratory protection is the same as that of class A protective clothing, but with less skin protection. The lowest level of protective clothing is used when the initial conditions of the accident are unknown, the main hazard is contact with liquid rather than vapor, or when the gas or vapor of the hazard has no obvious hazard to the skin.

The composition of Class B protective clothing is as follows:
1. Splash-proof chemical protective clothing
2. Positive pressure full self-contained breathing apparatus
3. Inner anti-chemical gloves, anti-chemical boots
4. Other equipment: communicator, helmet...etc

Class C protective clothing is a non-airtight one-piece protective clothing, which can only be used when the concentration of the hazardous gas is confirmed to be lower than the immediately dangerous concentration and the concentration is within the range of the respirator that can be used with an air-purifying canister, the hazardous gas or The vapor will not cause damage to the exposed skin and is used in a non-anoxic environment (oxygen concentration higher than 19.5%). Class C protective clothing protects against liquid splashes but does not protect against chemical vapors or gases, but class C protective clothing is lighter and the most comfortable than level A and B protective clothing. Medical personnel often wear Class C protective clothing to move the injured from the decontamination area to the first aid area for first aid.

The composition of Class C protective clothing is as follows:
1. Splash-proof chemical protective clothing
2. Air-purifying full-face mask or half-face respirator with air-purifying canister
3. Anti-chemical gloves, anti-chemical boots
4. Other equipment: communicator, helmet...etc

Class D protective clothing
Class D Protective Clothing Protective clothing has no respiratory protection and provides minimal skin protection. Use only if: There are no known hazards in the atmosphere. Protect from splash, immersion, potential inhalation or direct contact with hazardous chemicals. It belongs to the protective clothing worn in the workplace and will not be worn in the event of a poisoning disaster.
1. Non-airtight one-piece chemical protective clothing
2. Protective gloves, and protective shoes
3. Respiratory protective equipment (non-essential, except for medical staff or when necessary for respiratory protection)

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