Saw this, whatcha think?

[CalvinHobbes]

https://www.filtnews.com/effectiveness-of-hvac-filters-and-room-air-purifiers-in-mitigating-indoor-particulate-matter/

[JohnMo]

Isn't that what mvhr does already, although did loose the will to live reading the link

[hb1982]

Remove air pollution from sources.

If outdoor air is polluted, we install suitable air filter to remove pollutants before drawing air into the indoor space.

If there is pollution sources within the house, we remove pollutants locally, e.g. fume from cooking and moisture from wet rooms.

 

We only install air filter when there is a reason.