Oct 062012
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 Air Purifier.

What is an Air Purifier?

An Air Purifier is designed to help eliminate sick building syndrome risks by reducing odors, air pollutants, and cold and virus causing germs through a Photohydroionization (PHI) process.

Germicidal UV Light - Florida Green Home Consultants image

Air-Knight Germicidal UV Light

Where is an Air Purifier installed, and how does it work?

The PHI Cells are easily mounted into existing air conditioning and heating systems. When the HVAC system is in operation, the PHI Cell uses an Advanced Oxidation Process to reduce the airborne contaminants. The process consists of hydro-peroxides, super oxide ions, and hydroxide ions. All are friendly oxidizers. By friendly oxidizers we mean oxidizers that revert back to oxygen and hydrogen after the oxidation of the pollutant.

What is the UV light for?

Germicidal UV light is effective in reducing airborne microorganisms that pass through the light rays. However, germicidal UV light has little to no effect on gases, vapors or odors.

What does the ozone do?

Ozone is very effective on gases, vapors and odors. However, too much ozone can be a health hazard, and traditional methods of producing ozone (corona discharge) have maintenance problems and create nitric acid and nitric oxides.

Why UV light AND ozone, and how does it all work?

The combination of ozone (O3) and UV light in the presence of the PHI catalyst creates an Advanced Oxidation reaction. This reaction chamber both creates ozone gas and destroys it within the same chamber. This process, in combination with the catalytic target surface of the cell, produces not only an atmosphere in which germicidal light can kill micro-organisms. It also produces super oxide ions and hydro-peroxides. These products of advanced oxidation reactions further attack the microorganisms, as well as significantly reduce odors and VOC’s.

Florida Air Knight Germicidal UV Light - Florida Green Home Consultants image

Air Knight Germicidal UV Light

The PHI reaction cell has the added benefit of producing safe low levels of ozone as a by-product to the Air Knight cell. This low

level ozone further cleanses the air as it travels down the ductwork. By engineering the proper light wavelength and a dual function, no maintenance air cell, Air Knight has effectively designed a system that will not exceed the recommended Federal safety limits for ozone (0.04 ppm) in an occupied room.

What are the benefits of an Air Knight Air Purifier to a homeowner?

With the Air-Knight Air cell, many gases and odors are abated while micro-organisms can be reduced by as much as 90%, and the room will have ozone levels no greater than forest air or air after a thunderstorm, which will give the home fresh, clean sanitized and odor-free air.

Is an Air Purifier right for your home?

Whether it is or not depends on the size of your home, the number of occupants, the way that your air distribution system has been designed and installed, the amount of air leakage that there is in your home’s outer envelope, and many other factors.

This is where we can help. In conjunction with the guidelines of the American Society for Refrigeration and Air-Conditioning (ASRAE), we follow the LEED for HOMES Whole House Approach, which not only considers one stand-alone Green Home Improvement, but also its relationship to all the other elements that impact the air quality of your home.

Please contact us if you need assistance.

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