You may have heard the term N95 but what does it mean and why are some masks rated higher than others?
from BBC News - Technology https://ift.tt/2zjKz1v
from BBC News - Technology https://ift.tt/2zjKz1v
Find out which masks off the most protection and why
![Find out which masks off the most protection and why]()
Reviewed by swadu
on
May 25, 2020
Rating:
No comments: