HealthPro Compact XE

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

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