Wearing a used mask 'can be WORSE than not wearing one at all', study suggests 

A new study found that new three-layer surgical masks can filter out 65% of tiny coronavirus-infected particles but used masks can filter out just 25% because the mask becomes worn out.

from Health News | Mail Online https://ift.tt/3nhuMUu

Comentarii

Postări populare de pe acest blog

12 Sparkling Wine Cocktails for the Holidays

Take Your Fourth of July Barbecue Into the Future with These New Products