How Does Ozone Treatment Work for Odor Removal?

Ozone is a molecule composed of three oxygen atoms, unlike the stable two-atom oxygen you breathe. This third oxygen atom makes ozone highly reactive and unstable. It readily attaches itself to other molecules, particularly those responsible for unpleasant odors. This chemical reaction, called oxidation, permanently alters the odor-causing compounds, effectively neutralizing the smell at its source. This process is fundamentally different from using air fresheners or deodorizers that simply cover up a smell temporarily.

This treatment is particularly effective on organic-based odors commonly left behind by water damage. After a flood, smells from sewage, rotting materials, or stagnant water can permeate building materials and become very persistent. Ozone is also powerful against persistent smoke odors and the musty smell associated with mold and mildew growth. It can penetrate porous surfaces like upholstery, carpets, and drywall where odors hide, reaching places that surface cleaning cannot.

• Musty, earthy mold and mildew odors
• Sewage or bacterial contamination smells
• Persistent smoke from cigarettes or fires
• Pet urine and other biological odors
• Stagnant water and general dampness
• Odors from rotting food or organic matter

Ozone is not always the first step for odor removal. It is typically considered for severe, pervasive smells that survive initial cleaning and drying efforts. This method is often used when odors are deeply trapped in materials that cannot be easily removed or cleaned, making it a final-stage solution for tough cases. The local climate can influence how quickly odors set into materials, which is a factor the pros consider when evaluating if this treatment is appropriate for your specific situation.