A ULPA filter can remove from the air at least 99.999% of dust, pollen, mold, bacteria and any airborne particles with a minimum particle penetration size of 120 nanometres.
I recently moved to a place with worse air quality. The fatiguing effect on me is noticeable to me (though I suspect I might have vulnerable physiology). It makes me want to try to update far in the other direction: maybe any level of impurity causes bad effects, but I didn’t notice them (or associate it with air quality) cause some impurity was constant even with normal filters.
My current idea is to try to make a system like in the video, plus a tube so I can get the filtered air directly to my face. I don’t know how feasible it is to filter a whole room to that level.
There’s a history here of discussion of how to make good air purifiers (like this). Today I learned about ULPA filters and found someone’s DIY video using one of them.
I recently moved to a place with worse air quality. The fatiguing effect on me is noticeable to me (though I suspect I might have vulnerable physiology). It makes me want to try to update far in the other direction: maybe any level of impurity causes bad effects, but I didn’t notice them (or associate it with air quality) cause some impurity was constant even with normal filters.
My current idea is to try to make a system like in the video, plus a tube so I can get the filtered air directly to my face. I don’t know how feasible it is to filter a whole room to that level.