What's a good metric for when to stop masking?

Masks… Unless you wear a full-blown gas mask, surgical- or cloth masks do not work to block a virus. The virus molecules FLY through the material, like a chain link fence. Surgical masks are designed to block ‘spit’ during a surgical operation, ONLY. N95 masks, nearly the same, as surgical, and as per OSHA, wearing an N95 for more than 45 minutes is UNHEALTHY. ( carbon dioxide re-enters your system )…
Enter a restaurant wearing a mask… Do you smell the wonderful fragrance of a steak? Those molecules are much bigger than a virus.
Ever heard of “Long Covid” ? That is due to wearing a mask for extended time…similar ‘covid’ effects, result of wearing the mask.
Ventilators… A DEATH MACHINE for patients with respiration issues… Ventilators were used to PROTECT nursing staff, NOT patients. Ventilators killed ‘covid’ patients. Ventilators are like pouring gasoline on a fire to patients. Hospitals knew this but they got millions of dollars to use them.

((( As per Dr. Fauci’s own words : " Masks were about authority, NOT the safety of people".