Most indoor air “purification” technologies focus on capture: trapping particles in filters, absorbing gases into carbon, or masking odors with fragrance. Chlorine dioxide (ClO₂) works differently.
It oxidizes airborne contaminants at the molecular level, breaking down odor-causing compounds, neutralizing allergens, degrading volatile organic compounds (VOCs), and inactivating airborne microbes — without relying on filtration alone and without leaving residues behind.
This page explains:
Filtration removes particles from the air stream.
Oxidation chemically alters contaminants, so they are no longer biologically active, odorous, or chemically reactive.
Chlorine dioxide is a selective oxidizer, meaning:
This makes it uniquely suited for continuous, low-level air treatment rather than shock disinfection.
In occupied buildings, aggressive oxidizers (ozone, high-concentration peroxide fogging) can:
Chlorine dioxide, when properly generated and dosed, has been shown to:

Airborne allergens such as:
Trigger immune responses because of specific protein structures on their surface.
Oxidation disrupts these protein structures, reducing allergenic activity rather than simply relocating the particles.
Multiple laboratory and environmental studies indicate that chlorine dioxide:
Studies examining protein oxidation by ClO₂ show structural denaturation that correlates with loss of biological function rather than simple particle removal.
This is functional neutralization, not just air “freshening.”
Envirotab 2 × 20g Air Space Deodorizing Kit
Ideal for unoccupied or intermittently occupied rooms with known allergen load (basements, seasonal rooms, remediation zones).
Clean Air Cure Starter Kit
Designed for continuous allergen reduction using HVAC air circulation without disrupting occupants.
Clean Air Cure 90 HVAC Kit
Whole-home approach for forced-air systems, allowing ongoing oxidation of allergens as air recirculates.


Odors are caused by volatile organic and inorganic compounds, often sulfur- or nitrogen-based.
Masking agents add fragrance.
Absorbents temporarily bind molecules.
Chlorine dioxide chemically breaks odor molecules apart.

Research in industrial hygiene and food processing environments demonstrates that ClO₂:
This explains why chlorine dioxide is widely used in:
Envirotab 20g Air Kits → Targeted room deodorization
Clean Air Cure Starter Kit → Recirculated odor reduction
Clean Air Cure 90 HVAC Kit → Whole-home odor management via ductwork

VOC's from:
Are often too small for mechanical filtration and may persist for months or years.
Studies examining ClO₂ reactions with VOCs show:
→ Clean Air Cure 90 HVAC Kit is particularly suited here.

This is not a specific statement of microbial deactivation by our products, simply a general discussion as to what has been found true concerning Chlorine Dioxide.

Chlorine dioxide damages microbes by:
Importantly, it does so without needing direct liquid contact.
Controlled studies show ClO₂ gas:
This explains its use in:

For rapidly reducing the presence of offensive airborne particulates and contaminates, consider this Kit.

For localized application of a low-dose release of chlorine dioxide to purify air spaces, consider this Kit.

For regular purifying and sanitizing of air throughout your home, using your central HVAC system, consider this Kit.

P.O. Box 34 Winterport, Maine 04496
If you need more information, or are a commercial buyer, please visit this parent site.