標題: COVID-19: An updated guide to face masks [打印本頁] 作者: geemong 時間: 2021-3-14 16:11 標題: COVID-19: An updated guide to face masks
本帖最後由 geemong 於 2021-3-14 16:12 編輯
COVID-19: An updated guide to face masks
More than 3 เกม Bingo Slotxo สุดมันส์ สนั่นจอ a year into the pandemic, many experts
advise that you upgrade your masks to protect yourself against more contagious
variants of the coronavirus.
The good news is there are now more mask options to choose from. Here’s what
to know.
N95 mask
An N95 mask filters out 95 per cent of 0.3 micron particles, the hardest size to trap.
But many people don’t wear N95s correctly, making them less effective. N95s are
hard to find, and counterfeits are common. Avoid N95s with respirator valves, which
expel your germs onto others.
KN95 mask
The KN95, made in China, also claims to filter 95 per cent of hard-to-trap particles.
It has ear loops instead of head straps, so it may not fit as snugly. The mask supply
chain is also riddled with counterfeit KN95s, which may work only about as well as
a cloth mask.
KF94 mask
The KF94 is a top pick among health experts for its quality, high filtration rate and
snug fit, with top and bottom flaps, and a mouldable nose bridge. It can be easier
to speak wearing a KF94.
Make sure yours is made in South Korea, where quality control efforts make
counterfeits less likely.作者: kldahs0d81h 時間: 2021-3-21 16:37
