What is the usage time of a positive pressure air respirator?


The usage time of the air respirator varies for different users and situations; the gas consumption differs, and the greater the work intensity, the faster the gas in the cylinder is consumed. The main factors to consider when using a respirator are:

1. The labor intensity of the user;

2. The physical condition of the user;

3. The degree to which the user is affected by their own excitement, fear, or other emotional factors;

4. The level of training and experience the user has with this or similar equipment;

5. Whether the cylinder is fully charged with gas at the start of use;

6. The atmospheric pressure in the environment, for example, if in an environment of 2 atmospheres, such as a pressurized tunnel or chamber, the usage time is under 1 atmosphere; if used under 3 atmospheres, the usage time is one-third of that under 1 atmosphere;

7. Factors such as the mask not fitting snugly against the face or being worn incorrectly.

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