They advised ventilators too until they realized people were dying from them.
the science says masks are trash unless you have a n95 or better...you being someone always rallying for the poor should be pointing this out so the government can help it’s most vulnerable get access to N95. The average person can’t afford them or buy them like they need to.
This article is from today...
Results found that commonly worn cloth masks and basic surgical masks were only capable of filtering exhaled particles "at apparent efficiencies of only 12.4 percent and 9.8 percent, respectively." On the other hand, results also found that N95 and KN95 masks saw "substantially higher apparent filtration efficiencies" of 60 percent and 46 percent, respectively. This led the study's authors to conclude that the two premium masks "are still the recommended choice in mitigating airborne disease transmission indoors."
The team believes that the poor fit of most
cloth and surgical masks is to blame for the major decrease in filtration capabilities. Photographic evidence from the study showed that spaces between the face and PPE allow particles to escape into the ambient air, most often redirecting particles out the top of the mask over where it touches the nose.
Ultimately, the research team concluded that a combination of improved ventilation systems and higher quality face masks could go a long way in slowing the spread of COVID-19. "There is no question it is beneficial to wear any face covering, both for protection in close proximity and at a distance in a room," Serhiy Yarusevych, PhD, a professor of mechanical and mechatronics engineering and the leader of the study, said in a statement. "However, there is a very serious difference in the effectiveness of different masks when it comes to controlling aerosols."
Have to upgrade your mask and your ventilation system to make a difference . that’s wild as hell to read
The use of face masks has been a part of daily life since the early days of the pandemic. Unfortunately, donning PPE has taken on a renewed importance ever since the highly transmissible Delta variant has become the dominant strain of the virus in the U.S., with some local health officials...
www.yahoo.com