What Is a Bag Valve Mask?

Compared with valveless masks, valved masks have lower exhalation resistance and are more comfortable to wear. Strictly speaking, the valved masks are now divided into disposable and duplex.

With valve mask

Compared with valveless masks, valved masks have lower exhalation resistance and are more comfortable to wear. Strictly speaking, the valved masks are now divided into disposable and duplex.

Chinese name

With valve mask

Foreign name

With valve mask

The outer layer with a valve mask often accumulates a lot of air

As occupational protection needs, it is recommended to buy a valve mask with the following points:

Don't pay too much attention to the price, ignore the degree of protection, and buy a valved mask that does not meet your protection needs.

Do not pay too much attention to the price, neglect the comfort, uncomfortable masks, can not be worn for a long time.

Don't pay too much attention to price and ignore quality. Quality is the guarantee of safety.

Don't pay too much attention to the price and ignore the service life. Some masks are cheap and uneconomical to use.

1. Purchase a valve mask with national certification. (LA certification, special labor protection supplies safety signs management center can be found)

2. Purchase a respirator with a valve suitable for the protection level. Generally, if the allowable limit is within 10 times, choose KN90 mask, within 20 times choose KN95 mask, and then choose KN100 or active air supply type.

3. It is recommended to buy disposable masks. Although the service life is short, it can effectively avoid secondary pollution.