Technology Comparison

HEPA (High Efficiency Particle Arresting) Filter

Most widely known method for purifying air. Depending on the filter size, it can clean up to 99.99% of particulate in the air with proper ventilation. They are not effective on treating mold, mildew, bacteria, and other fungi.

Electrostatic Filtration

Another filtration system with a negatively charged surface is used to attract particulate. In comparison to most HEPA systems it is more effective in trapping smaller micron particulate and effective in clearing smoke from the air. Low levels of ozone may be produced which can neutralize most mold, mildew, bacteria, and other fungi that comes in contact with the filter.


Also uses a negatively charged surface to produce and expels an abundance of negative ions and cause suspended particles to cling to walls, floors, and other surfaces . Most ionizers are effective in settling dust and particulate out of our breathing space.


Ozone is a very powerful oxidizer that will neutralize odors, mold, mildew, bacteria, and other fungi. This technology is commonly used in flood and fire restoration. Ozone is found to be effective because it works on the problem at the source and air does not have to be pulled through the unit for treatment.

UV Germicidal Lamps

Commonly used for disinfecting purposes. This technology is effective in sterilizing air and surfaces that come in contact with the UV light. UV has been proven in both air and water applications to inactivate bacteria and viruses to prevent them from reproducing.


Using light to react with a catalyst resulting in oxidation. This is found to be effective in destroying mold, mildew, bacteria, other fungi, dust mites, and many odors. This technology is produced with an Ozone/UV lamp set in a variety of combinations. When this type of photocatalysis is combined with the natural humidity in indoor air it creates hydroxyl radicals and super oxide ions that are effective in combating bacteria, fungi and VOC. This method is also a pro-active approach that goes to the source for treatment.


Hepa Filter Electrostatic Ozone UV Ionizer Photocatalysis
Mold Poor Good Good Good Poor Excellent
Bacteria Poor Good Good Good Poor Excellent
Dust Mites Poor Poor Poor Good Poor Excellent
Gases Poor Poor Good Good Poor Excellent
Odors Poor Good Good Poor Good Excellent
Smoke Good Good Good Poor Excellent Good
VOCs Poor Poor Good Good Poor Excellent
Pet Dander Good Good Good Good Good Excellent