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Fire drills use dry powder fire extinguishers. Is inhaling a lot of dry powder harmful to your body

Oct 26 20213 people replied
Description Of Condition:

There were about 1000 people in the fire drill just now. Some people sprayed on the sky and there was dry powder all over the sky. They choked tears and coughed all the time. They went to the upper air outlet to alleviate the problem. Is the problem big and does it have an impact on my body

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