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2. High-ozone shock treatment - Wikipedia

   en.wikipedia.org/wiki/High-ozone_shock_treatment

   High ozone shock treatment or ozone blasting is a process for removing unwanted odour, and killing mold, vermin and microorganisms in commercial and residential buildings. . The treatment is less expensive than some alternative methods of sterilizing indoor spaces - cleaning or removal of building material, or in extreme cases the abandonment of sick buildin

3. Ground-level ozone - Wikipedia

   en.wikipedia.org/wiki/Ground-level_ozone

   Ground-level ozone (O 3), also known as surface-level ozone and tropospheric ozone, is a trace gas in the troposphere (the lowest level of the Earth's atmosphere), with an average concentration of 20–30 parts per billion by volume (ppbv), with close to 100 ppbv in polluted areas.

4. Oxygen concentrator - Wikipedia

   en.wikipedia.org/wiki/Oxygen_concentrator

   The term oxygen generator is a misnomer in that the oxygen is not generated as it is with a chemical oxygen generator, but rather it is concentrated from the air. Non-medical oxygen concentrators can be used as feed gas to a medical oxygen system, such as the oxygen system in a hospital, though governmental approval is required, such as by the ...

5. Ozone therapy - Wikipedia

   en.wikipedia.org/wiki/Ozone_therapy

   The United States Food and Drug Administration (FDA) prohibits all medical uses of ozone "in any medical condition for which there is no proof of safety and effectiveness", stating "ozone is a toxic gas with no known useful medical application in specific, adjunctive, or preventive therapy. For ozone to be germicidal, it must be present in a ...

6. Plasma cleaning - Wikipedia

   en.wikipedia.org/wiki/Plasma_cleaning

   Plasma cleaning is the removal of impurities and contaminants from surfaces through the use of an energetic plasma or dielectric barrier discharge (DBD) plasma created from gaseous species. Gases such as argon and oxygen, as well as mixtures such as air and hydrogen/nitrogen are used. The plasma is created by using high frequency voltages ...

7. Scientific Assessment of Ozone Depletion - Wikipedia

   en.wikipedia.org/wiki/Scientific_Assessment_of...

   Ozone remains depleted in the midlatitudes of both hemispheres. The global-average total column ozone amount for the period 1997-2001 was approximately 3% below the pre-1980 average values. Models capture the observed long-term ozone changes in northern and southern midlatitudes.