/sci/ - Science & Math

>>15390838
>Medical professionals have used these masks for years, often for hours at a time.
This might explain why medical errors are the #1 cause of death in hospitals now, with around 700,000 unnecessary deaths in the USA each year.

>>15346803
>Do they actually work or not? Yes or no? The real ones, N95 or better.
Only self-contained bottled air in pressurized suits and a total sanitation and disposal of said suits after use "works".
They don't wear cloth "masks" in a level-4 bio-hazard lab, where the virus was created by splicing HIV and Corona virus. Body suits only.