Indoor Air Treatment

Most of the application of ozone has been for the treatment of water. Recently, ozone increasingly is being employed commercially for air treatment odour control (removal of VOCs (Volatile Organic Compounds) from the air). This is conveniently and practically achieved by integrating the ozone generator system into the HVAC system. Ozone sensors are installed to maintain ozone concentrations at an optimum level. The majority of projects so far are for the gaming and hospitality industries like casinos, hospitals, shopping malls etc. where there is a high return on investment in systems which create and maintain high quality air. It has been found that ozone works well with particulate filters. It eliminates the need for costly carbon VOC filters and reduces the makeup air required which is costly to condition.

Major Reasons behind this

  • Heightened public awareness that something can be done about indoor air quality (IAQ).

  • Increased IAQ problems due to sealed buildings and less makeup (outside) metered into HVAC systems.

  • Increased public intolerance for smoking and the realization that many common chemicals contribute to poor IAQ.

  • New ozone generator and ozone monitor designs that make system control a reality.

  • Attractive payback economics due to savings in energy and in replenishments for carbon filters which have been eliminated

  • Conclusion

    Ozone reduces VOCs more effectively than carbon, has no replenishment expense, oxidizes residual VOCs from finish surfaces, reduces demand for outside air, eliminates the growth of microbial matter inside the condensate drip pans, coils and heat exchangers, and ductwork. Ozone offers superior performance to any other method currently in use for gas, odor, and VOC control; has benefits which none of the other strategies offers; and results in lower ownership costs due to lack of replenishment expense and decreased make-up air heating and cooling requirements