HealthPro Compact XE

Just an FYI: many purifiers are good at removing particulates or gases/vapors/odors/VOCs, but not both. Wildfires often produce high concentrations of gases which require many pounds of activated carbon or other sorbent media. Chemically untreated sorbents do not have high removal capacities for all

This user must be a bot or using AI. They told you get to "true HEPA", but recommended the Smart Air Sqair which doesn't use HEPA. It uses an Efficient Particulate Air (EPA) E12 filter. And the Sqair does not have "higher CADR and better filtration" than the Airmega Mighty 1512HH. Someone's welcome

You'd probably have to find a purifier that exhausts air horizontally or one that doesn't exhaust air directly out the top. Examples are the IQAir HealthPro Compact XE*, IQAir Atem X [can be wall mounted if needed; don't think cats will lay on it), and the Medify Air MA-112 PRO. *Cats can still lay on

Do you know the exact substances causing your symptoms? I ask because purifiers are generally good at removing particulates or removing gases/vapors/odors/VOCs, but not both. I'll cover particulates purifiers. I assume your definition of "True" HEPA is ≥99.97% efficiency at 0.3 microns from the U.S.

The "best" usually means high CADRs and very good build quality without being too loud. In terms of quality, energy efficiency, and relatively quiet performance, the Coway brand would be ideal.* Unfortunately Coway's Green HEPA filters uses antimicrobial coatings you want to avoid. *Coway Airmega Migh