SPECIAL
Association for Environmental and Interior Analytics tests the new Therapy Air® Plus
Surface measurement in 30 representative households
From late August to mid-November 2005, the Association for Environmental and Interior Analytics (GUI) in Mönchengladbach (Germany) subjected the Therapy Air® Plus air purifier to a surface measurement. The air was measured in 30 representative households. The Therapy Air® Plus was set up and used for one week in places where a significant concentration of substances of the type that triggers allergies and particulate matter had previously been recorded.
The GUI then carried out another measurement and came to the conclusion that “the positive conclusion was backed up by unambiguous statistics.” (Field Study conducted by the Association for Environmental and Interior Analytics (GUI)).
The Therapy Air® Plus has now been certified by both TÜV NORD Systems GmbH & Co. KG and the GUI to provide an optimal air purity quality.
“Air purifiers tested by neutral organizations make a major contribution towards creating ‘healthy interiors’”, affirmed the head of the study, Dr. Dipl.-Ing. Andreas Winkens VDI, the Managing Director of the Association for Environmental and Interior Analytics.
The “PLUS”: Tested for Ambient Air Hygiene by TÜV-Nord
Therapy Air® Plus: Ambient Air Hygiene Testing
Test results from TÜV NORD Systems GmbH & Co. KG, Essen, Germany
99% PURIFIED AIR EVERYWHERE
As of July 15, 2005, Therapy Air® Plus air purifier is the only device on the market featuring the TÜV NORD test certificate “Suitable for allergic people.” TÜV NORD Systems GmbH & Co. KG tested the air purifier between January and July 2005 before awarding it this certification.
The objective of the tests was to determine how well the device performed in purifying indoor air “in terms of respirable particulate matter, molds and allergens.” The ozone emission rate was also ascertained. The indoor area where the air purifier was tested, under conditions complying with regulations, had a volume of 52 cubic yards (40 cubic meters) of air.
Assessing the test results.
The Therapy Air® Plus test shows that, while the device is in use, “none of the threshold values that trigger currently recognized medical and/or allergological reactions are reached, even in areas with a high degree of contamination from pathogenous materials contained in the air in the form of particles.”
“Based on the normal pollution levels in enclosed areas and the environment, i.e.
- 20 to 100 µg particulate matter per m3 air,
- 10 to 50 ng allergens per m3 air
- 100 to 500 KbE mold spores per m3 air.
- The air purifier that was tested achieved results, per m3 air, of 1 µg particulate matter, 1 ng allergens and 10 KbE mold spores”.
Air turnover rate per hour and ozone emission rate
With an air volume of, e.g., 65 cubic yards (50 m3)—corresponding to a floor surface area of 24 square yards (20 m2)—the Therapy Air® Plus achieves the recommended air turnover rate of two changes of air per hour. The device's target specification for air quality and the reduction in airborne pollution is thus achieved after several changes of air.
The measured ozone emission rate of under 20 µg per hour achieves an ozone concentration in the air of 2 µg per m3 when the device operates continually. By comparison:
“this value is smaller by a factor of 10 than the threshold specified for awarding the ‘Blue Angel’ label for printers, copiers and multifunctional devices.”
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