sabik@sabik@rants.au
@johnzajac@dice.camp @jeridansky@sfba.social @KeithAmmann@dice.camp
Generally I've come to recommending HEPA filters, because they're a familiar kind of appliance people can get from Ikea or Samsung or whatever, plug in and go
Opening windows is nice, but depends on layout and weather for both efficacy and acceptability; great if you're having a plumber in to fix your sink, less good for regular use
Everything else (HVAC, upper-room UV, far UV) needs some degree of expertise