Ozone is colourless at all concentrations experienced in the industry. It has a pungent characteristics odour usually associated with electrical Sparks.

The odour is generally detectable by the human nose at concentrations of 0,02 ppm to 0,05 ppm.

Ozone is a triatomic molecule, consisting of three oxygen atoms.

Ozone is colourless

Ozone has a characteristic smell

Ozone can be measured in ppm or in µg/m3

Ozone can be created trough Corona discharge or ultraviolet light

Ozone oxidizing almost all organic compounds

Ozone is not combustible

Ozone breaks down compounds, substances and microorganism such as:

• Odours

• Sulphur hydrogen, H2S

• Ammonia N3

• Grease

• Virus

• Mould

• Bacteria

SAFETY REGULATIONS FOR OZONE

Local protection legislations must be followed when using ozone. In Sweden the Swedish Work Environment Authority issues the following hygienic limits for ozone:

• 0,1ppm (during a working day, 8 hours)

• 0,3ppm (during 15 minutes)

At acute exposure ozone can cause following injuries:

• On skin: Irritation and burning feeling.

• In eyes: Hard irritation, burn injuries and reduced vision.

• In lungs: Irritated effect on respiratory organs and breathing problems.

Basically one should always take precautions if ozone in some way can be detected in indoor environment. Ozone is an unstable gas. Depending on the temperature it reverts back to oxygen in about 20-30 minutes.