Foam in breathing devices can degrade and emit tiny particles and gases that may be toxic or pose carcinogenic risks.
https://ift.tt/eA8V8J
from Us - CBSNews.com
Foam in breathing devices can degrade and emit tiny particles and gases that may be toxic or pose carcinogenic risks.
https://ift.tt/eA8V8J
from Us - CBSNews.com
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