2020年5月19日火曜日

フェースシールドの効果はいかに?


フェースシールドとも、”Face visor”ともいうんだ?

このまえ
Chermyaa フェイスシールド プラスチック製 調整可能 軽量 花粉 保護 曇り止め 全面保護

これ買ったんだけど・・・・イマイチだったなああ。プラスチック面がいまいち小さい、透明度が足りず、ちょっと白みがかっている。・


While there have been several studies in relation to face masks, albeit often with contrary conclusions, there has not been the same research into face shields or visors. The JAMA commentary referenced a study which found that shields worn by a test subject within 1.8 metres of a cough reduced inhaled influenza virus by 92%, although this protective effect reduced after the cough had dispersed for 30 minutes.

Bill Keevil, a professor of environmental healthcare at the University of Southampton, said the advantages of shields include that they protect the eyes, are easier to put on and wash, prevent people touching their face, and are also better for people with breathing difficulties, such as asthma, who have been told not to wear face coverings in the UK.

“You can see how, in a way, it would give better protection for the wearer and it may – I just say may – help reduce transmission to others, because whatever you produce is not projecting a long way from your face,” he said.

マスクに関しても、賛否両論の様々な研究結果があるが、フェースシールドについてはまだ、それほど研究結果はないんだねえ。 

マスクといっしょで、装着者の口元隠せば装着者からの唾の飛散を防げるように思うんだけどね。


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