re: If a mask won't protect you from wildfire smoke

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Wearing a mask does have the scientific community saying it prevents spread.

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Let’s be accurate. Masks have some in the scientific community guessing masks could possibly prevent spread. And curiously, those offering their guess on masks also guess that racism is a healthcare crisis in the country and are unwilling to go on record about how many genders there are.

Even a link you posted showed that the claim being posited by the scientists was unproven.