smartairfilters.com/en/blog/diy-homemade-mask-protect-virus-coronavirus/ >The homemade cotton masks captured 50% of 0.02-1 micron particles, compared with 80% for the surgical mask. Although the surgical masks captured 30% more particles, the cotton masks did surprisingly well. The researchers concluded that homemade masks would be better than nothing.
ncbi.nlm.nih.gov/pmc/articles/PMC2440799/ >Any type of general mask use is likely to decrease viral exposure and infection risk on a population level, in spite of imperfect fit and imperfect adherence, personal respirators providing most protection.
Schizo Mode: Same thing as above but replace the paper towel pleb shit with an HVAC filter. Normalfags aren't buying these (yet) so you can still snag some. You can make multiple, reusable masks off just one of these. mechreps.com/PDF/Merv_Rating_Chart.pdf Google a filter with a MERV rating from the link. The higher the rating, the better.