Bill Nye “The Science Guy” shared a public service announcement about face masks and the effectiveness of the materials used to make them in a pair of TikTok videos Wednesday amid a spate of coronavirus cases.
“Why do people in the scientific community want you to wear a face mask when you’re in public?” Nye asks at the start of the video. “Face masks like this prevent particles from my respiratory system from entering the air and then into your respiratory system. “
In the videos, while urging viewers to wear face covers in the midst of the coronavirus pandemic, he tries to blow out a candle with his mouth covered in a few different materials.
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First, he wears a scarf which he says “won awards at the Washington State Fair for design and manufacturing.” Of course, it was designed to keep the wearer warm.
“It can block the movement of air, but only to a certain extent,” he says, holding it over his mouth.
Then he easily extinguishes the candle.
Then he tries a homemade double layer cloth mask. On several occasions, the candle flame flickers but does not go out. A surgical mask has a similar effect in a later video.
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“If you wear one, you protect yourself and those around you,” says Nye.
In a second video, he wears an N95 respirator, which he says can block particles in medical and outdoor work environments.
He lights it, blows on the candle, and the flame does not move – not even a flicker.
“The reason we want you to wear a mask is to protect yourself, of course,” he says. “But the main reason we want you to wear a mask is to protect me and particles from your respiratory system from getting into my respiratory system.” ”
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The Coronavirus Prevention Guidelines of the Centers for Disease Control and Prevention (CDC) urge Americans to maintain a social distance of at least 6 feet from others, to wash their hands frequently and to wear face covers in public.