Do Air Purifiers Help With Mould Spores?

Are mould spores a particle?#

Yes. Spores are microscopic particles released by mould colonies, present at some level in almost every breath of outdoor air.

Indoors, the rated question is the airborne share in the room. The unrated fact is the damp that feeds the colony producing them.

What the rating covers#

The CADR rates removal of particles, and spores qualify. For the fine end, EPA’s advice is the tobacco-smoke column.

What no rating covers: the damp smell, the humidity, and the colony on the wall. Those belong to dehumidifiers, ventilation and repairs.

What sizing means here#

The published room minimum governs as always, rows rounded up between rows, 8-foot ceiling assumed. Spores drift between rooms, so the room you size is the room the unit sits in.

If damp is under control and spores are the remaining concern, a unit at or above the room’s published row doing continuous work is the rated part of the plan.

Limits and honest caveats#

• Find and fix the moisture source first; a purifier cannot dry a wall.
• A musty smell is gas-phase and unrated. Dehumidify and ventilate.
• Disturbing a mould patch, wiping, scraping, spikes the airborne share. Run the machine during and after.
• Dead spores are still particles; killing the colony does not remove the residue.

Where the marketing overreaches#

"Kills mould" is not a published claim, and killing was never the problem. Removal of the airborne particle share is the rated work; the box that says otherwise is selling a smell.

Coverage claims beyond the 600 sq ft end of the published table remain arithmetic nobody published.