Can Mold ¹ Grow in Your Air Purifier?

Most people buy an air purifier to help with mold removal—not to create a new place for it to grow. But depending on the type of purifier you use, certain designs can actually become a breeding ground for spores over time. Here’s what causes that problem, how to avoid it, and why Puraclenz PCO technology is different.

Why Mold ¹ Can Grow Inside Traditional Air Purifiers

HEPA filters are highly effective at capturing airborne mold ¹ spores. The problem? Once trapped, those spores can remain alive on the filter’s surface. Combine that with moisture or organic debris in the air, and a dark, enclosed filter becomes an ideal environment for new mold ¹ growth.

Over time, that buildup can:

• Release musty odors back into the air
• Reduce purifier efficiency and airflow
• Require frequent filter replacements to maintain performance

This is why traditional filter-based air purifiers often need regular maintenance and do little for ongoing mold removal in your home.

Why PCO Technology Keeps Your Purifier Cleaner

Puraclenz purifiers use patented Photocatalytic Oxidation (PCO) technology to actively deactivate mold ¹ spores in the air before they reach interior surfaces. Instead of simply trapping spores, our PCO process creates safe, charged ions that move throughout the room—neutralizing mold ¹, bacteria ³, and fungal allergens ¹ both mid-air and on exposed surfaces.

That means the purifier itself stays cleaner inside because there’s no buildup of live spores or organic growth. It’s a smarter approach to mold removal—purifying the air continuously instead of just filtering it.

Continuous Purification Without the Mold ¹ Buildup

Puraclenz technology runs continuously without producing ozone or UV emissions. Our units are UL-2998 Certified Ozone-Free and designed for long-term performance with minimal maintenance.

• No wet filters where mold ¹ can thrive
• No hidden collection points for pollutants
• No ongoing filter replacements that risk re-exposure to spores

Just continuous purification—quietly reducing airborne pollutants around the clock to support ongoing mold removal and cleaner indoor air.

The Bottom Line

While some air purifiers can trap spores that later multiply inside the device, Puraclenz uses proactive PCO purification to deactivate mold ¹ before it has a chance to settle or grow.

If you’re serious about effective mold removal, not just trapping spores in a filter, explore how Puraclenz keeps both your air and your purifier cleaner over time.

Recommended Products

Photon

Air & Surface Purifier

Core

Air & Surface Purifier + HEPA

At the heart of all Puraclenz purifiers is our patented Recharge Cell that cleans your space with ions. Laboratory tests against pollutants were conducted with a model P3000 unit that uses the same Recharge Cell that powers all Core and Photon purifiers. Recharge Cell (model R0002) powers all Puraclenz purifiers (models C750, P3000X, P3000, P1500, and P750).

¹ In independent laboratory testing, the Photon purifier was 99.75% effective at reducing Candida albicans from surfaces and 95.1% effective at reducing Aspergillus brasiliensis in the air.

² In independent laboratory testing, the Photon purifier was 99.4% effective at reducing MS2 bacteriophage virus in the air and 58% effective at reducing SARS-CoV-2 on surfaces.

³ In independent laboratory testing, the Photon purifier was 99.7% effective at reducing dangerous bacteria Methicillin-Resistant Staphylococcus epidermidis in the air and 95% effective at reducing dangerous bacteria Staphylococcus aureus on surfaces.

⁴ Non-living sources such as pet dander, cockroach matter allergens, dust mite matter allergens.