I feel ya. My house was miles away from the evacuation zone of the PacNW fires a little ways back, and the filters didn't last the month. We wore masks with filters rated for smoke whenever we had to go outside, and sealed every external seam, hoping the firefighters could get it under control in time. Thankfully, they're the public servants that actually know what that phrase means, and to the enth degree. I trust every one of them right alongside our Nat'l Park service members (rangers, et al), sight unseen.
When this nation's collapse comes to your town, remember this simple rule, fellow US peeps:
Firefighters & National Park Service? Heroes of the people, through & through.
Cops, etc.? Shoot on sight (if that's your chosen theme for the apoc, ofc.) 😅
Apples & oranges still need tending. Besides, apples are full of cyanide and citrus are classified by their acid. Oh, and "cherry" flavor is modeled after the arsenic in the pits (yay for early-capitalist corner-cutting)
"urine-iss"