Great for small spaces like a trunk!
Got the really nice ones from Conway and an industrial-sized one. Originally a couple were for smoke from wildfires, but turned out handy for the Covid times. Also nice for bathrooms.
When there’s a bunch of smoke blowing in from wildfires they’re a godsend. Smoke allergies suck.
I do not have any allergies so I do not need one. Although I can appreciate how one with allergies could value such a device.
I should use one more I have horrible allergies.