I think using a HEPA air purifier can still be beneficial. ERV and HRV typically...

eleveriven 3 months ago | parent | context | favorite | on: Study: Air purifier use at daycare centres cut kid...

I think using a HEPA air purifier can still be beneficial. ERV and HRV typically have standard filters that may not capture very fine particles, allergens, or airborne pathogens as effectively as HEPA filters do.