Proper use and precautions of protective mask (mask)
For air breathing protective articles, attention should be paid to the tightness of the connecting part of the catheter and the mask, and the middle part of the catheter should not be connected.
The dust respirator and respirator must be identified by the designated department of the state to meet the technical requirements and obtain the production permit before use;
The use of gas masks should be based on the different gas environment, choose the corresponding model, performance canister;
Should be used in accordance with the dust concentration in the air, using double or simple dust masks;
