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Jan 22, 2020 · Considering the global increase in pollution, allergens and unhealthy fumes, its no wonder that youre considering a good pollution mask.Your health is a priority, which is why its important to know which masks are the best pollution masks at filtering out the bad particles in the air and which masks dont live up to the marketing hype.

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Examples of the types of dust found in the work environment include the mouth (oral route). The probability of inhalation depends on particle aerodynamic diameter, air movement round the body, and breathing rate. The inhaled particles may then Vt = 2150 cm3 f = 20 min 1 (high physical activity)

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Apr 24, 2017 · With all this pollution in the air, many people try to protect themselves and reduce their exposure. So, some people use face masks. You may have seen pictures of

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