Recommendations about masks can simply get confusing, because all masks are not made equal. The N95 mask effectively prevents viral spread. These masks, when properly fitted, seal closely on the face and filter 95% of particles 0.3 microns or larger. But N95 masks will be in serious shortage even for medical professionals, who will be exposed to the highest amounts of SARS-CoV-2 and they are most wanting the strongest protection up against the virus. They’re also challenging to fit correctly. For those reasons, the CDC will not recommend them for general use.

As cases of covid-19 carry on and rise, everybody is deciding to wear a breathing filter when in public – but would they work?

The CDC recommends you carry on and practice safe social distancing (also known as physical distancing) by keeping six feet between yourself yet others all the time. Face coverings and markers should not substitute …