Air Purifier for Mold

The air purifier for mold that destroys what it captures

Q: Does an air purifier help with mold?

Yes, for the airborne part. An air purifier cannot fix the moisture that lets mold grow or remove mold off a surface, but it captures the mold spores and allergens floating in your air, which is how mold spreads from room to room and triggers allergy and asthma symptoms. AirSoap was independently tested to remove over 98.5% of airborne mold allergen in one hour. Use it alongside fixing the moisture source.

Q: What size mold particles does AirSoap capture?

Mold spores are typically 1 to 30 microns. AirSoap's TPA captures particles down to 0.0146 microns (14.6 nm), so mold spores and the even-finer allergen fragments are well within its range, including pieces small enough to slip through a HEPA filter.

Mold spreads through the air. AirSoap's filterless TPA technology charges and captures airborne mold spores and allergens on washable plates — independently tested to remove over 98.5% of airborne mold allergen in a single hour.†

Shop AirSoap for Mold See the test data

Filterless · washable · no mold-soaked filter to replace · tested by an independent microbiology lab

The Honest Answer

Does an air purifier help with mold?

Yes — for the airborne part, and that's a big part. An air purifier can't fix the moisture that lets mold grow, and it won't scrub mold off a wall. What it does do is capture the mold spores and allergens floating in your air — which is exactly how mold spreads from room to room and how it triggers allergy and asthma symptoms.

AirSoap goes further than a typical purifier: instead of trapping spores in a filter where they can keep growing, its TPA technology charges and neutralizes them on washable plates. In independent testing it removed over 98.5% of airborne mold allergen in one hour.† Pair it with fixing the moisture source and you address mold from both sides.

The Data

Tested to remove over 98.5% of airborne mold allergen

An independent microbiology lab measured how much airborne mold allergen (Alternaria, Alt a 1) AirSoap removed from a sealed test chamber in one hour.

Allergen	Start	After 1 hr	Removed
Mold (Alt a 1)	~484	<6.15	>98.5%
Dust mite (Der f 1)	~487	<15.1	>96.4%

Values in ng/m³. Source: Guangdong Detection Center of Microbiology, Report No. 2021FM14935R01E (method T/GIEHA 009-2018) — air purifier run at max speed for 1 hour in a 30 m³ chamber; natural decay subtracted. The tested unit (KJ300F‑X5) and the X3 are the same product.

How It Works

Mold spores are tiny. TPA is tinier.

Mold spreads by releasing microscopic spores into the air. They're small — but nowhere near small enough to escape AirSoap's TPA filtration.

1–30 µm

Typical mold spore size

0.0146 µm

What TPA captures down to (14.6 nm)

>98.5%

Airborne mold allergen removed in 1 hr†

Filterless vs HEPA

Why a filterless purifier is better for mold

With mold, the filter itself can become the problem. AirSoap doesn't have one.

HEPA Filter

Mold can grow in the filter

A HEPA filter traps mold spores in dense, often-damp media — the exact conditions mold loves. Left unchanged, captured mold can grow inside the filter and get blown back into your room, adding pollution to the air you're trying to clean. Then the moldy filter heads to a landfill.

AirSoap · TPA

Neutralized, then rinsed away

AirSoap charges and neutralizes mold spores in its ionic field, then collects them on washable, reusable plates — nothing alive is left growing in a filter to recirculate. When the plates fill up, you rinse them in the sink and slide them back in. No mold-soaked filter, no replacements, ever.

Why It Matters

Cleaner air for mold-sensitive homes

Fewer mold allergy triggers

Airborne mold allergens are a leading indoor trigger for sneezing, congestion, and asthma. Removing them from the air can mean fewer symptoms at home.

Tackles the musty smell

The catalytic stage breaks down many odor-causing compounds and VOCs, while removing airborne spores cuts the musty, moldy smell at its source.

Runs quietly, 24/7

Mold control is continuous. AirSoap is quiet enough to run around the clock in a bedroom or basement, with no filters to keep buying.

AirSoap air purifier for mold beside a bathtub in a moisture-prone bathroom

At Home

Put it where the mold is

Bedrooms next to a bathroom, basements, laundry rooms, and after water damage — place AirSoap where you notice musty air or symptoms, and let it clear the spores while you fix the moisture.

Choose Your Size

The right AirSoap for your mold-prone room

Both run the same filterless TPA technology — pick the coverage that fits your space.

TPA

AirSoap X3

Filterless air purifier for rooms up to 860 sq ft — bedrooms, nurseries, and home offices.

$399.95Shop →

TPA

AirSoap X5

Large room air purifier for open spaces up to 1,600 sq ft — basements, great rooms, and finished lower levels.

$649.95Shop →

See how the technology works on our filterless vs. HEPA page, or compare all AirSoap air purifiers.

FAQ

Air purifiers and mold, answered

Does an air purifier help with mold?+

Yes — for the airborne part. An air purifier can't fix the moisture that lets mold grow or remove mold off a surface, but it captures the mold spores and allergens floating in your air, which is how mold spreads from room to room and triggers allergy and asthma symptoms. AirSoap was independently tested to remove over 98.5% of airborne mold allergen in one hour. Use it alongside fixing the moisture source.

Does AirSoap kill or remove mold spores?+

AirSoap's TPA technology charges and captures airborne mold spores and allergens on washable plates, neutralizing them rather than just trapping them in a filter. In independent testing it removed over 98.5% of airborne mold allergen (Alternaria, Alt a 1) within an hour.

Will an air purifier remove a musty, moldy smell?+

It helps. AirSoap's catalytic stage breaks down many odor-causing compounds and VOCs, and removing airborne mold spores reduces the musty smell at its source. A persistent odor usually means active mold growth or moisture that still needs to be addressed.

What size mold particles does AirSoap capture?+

Mold spores are typically 1–30 microns. AirSoap's TPA captures particles down to 0.0146 microns (14.6 nm), so mold spores and the even-finer allergen fragments are well within its range — including pieces small enough to slip through a HEPA filter.

Air purifier for mold vs. a dehumidifier — which do I need?+

They do different jobs. A dehumidifier lowers humidity so mold is less likely to grow; an air purifier removes the mold spores and allergens already in your air. For an active mold problem, the ideal combination is a dehumidifier to control moisture plus a filterless air purifier like AirSoap to clear the air.

Where should I place an air purifier for mold?+

Put it in the room where you notice mold, musty odor, or allergy symptoms — often a bathroom-adjacent bedroom, a basement, or a laundry area. The AirSoap X3 covers rooms up to 860 sq ft; for large or open areas up to 1,600 sq ft, use the AirSoap X5.

Clear the mold out of your air

Filterless, washable, and tested to remove over 98.5% of airborne mold allergen — with no mold-soaked filter to replace.

Shop AirSoap Air Purifiers

† Based on third-party laboratory testing of the underlying TPA technology (airborne Alternaria/Alt a 1 mold allergen) under controlled chamber conditions; real-world results vary with room size, humidity, placement, and the source of mold. An air purifier reduces airborne mold spores and allergens and does not remediate mold growing on surfaces or remove the moisture that causes mold. TPA filtration is powered by Airdog.