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| KLINIČNE RAZISKAVE PROIZVODA PRISTINE
Results of Vacuum Tests Using Actual Dust,
Dust Mites & Allergen Particles
| Conduced by: The University of Virginia Department of Medicine, Asthma & Allergic Diseases Center, under the direction of Dr. Thomas Platts-Mills September 1997
PURPOSE:
To evaluate the relative effectiveness of Pristine® fabrics in blocking both cat dander and dust mite allergen. |  Nanograms of allergen passing thru after 5 minutes. 1.0 gram dust load. Dust sample contained 510 mcg/g of Fel d1 allergen.
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METHOD:
A dust trap normally used to collect dust samples from homes for allergen evaluation was modified so that air going into the vacuum cleaner would pass through the test fabric and then through an airborne glass fiber filter. | | RESULTS:
Pristine filtered 99.99% of the cat dander allergen from the total dust load. | | | One gram of house dust containing a known quantity of allergen was used. The vacuum cleaner attempted to suction the dust sample through the test fabric for 5 minutes, after which time the amount that actually passed through the test fabric was measured to one-millionth of a gram. |  | | |
Nanograms of allergen passing thru after 5 minutes. 1.0 gram dust load. Dust sample contained 5.5 mcg/g of Der f1 allergen.
| RESULTS:
Pristine filtered 99.95% of the Der f1 mite allergen from the total dust load. |  Nanograms of allergen passing thru after 5 minutes. 1.0 gram dust load. Dust sample contained 3.7 mcg/g of Der p1 allergen. | RESULTS:
Pristine filtered 99.87% of the Der p1 mite allergen from the total dust load. | | |
Results of Centrifuge Testing Using Actual Dust Mite Allergens Tests Conducted By:
IBT Reference Lab - Lenexa, Kansas, under the direction of John F. Halsey, Ph.D. Novernber 1997 PURPOSE:
To determine the effectiveness of Pristine™ as a barrier to dust mite allergens by measuring the amount of dust mite allergens present after controlled exposure to such allergens. METHOD:
A sieved reference dust sample containing a known quantity of the indicated allergen was loaded into one side of the special dual chamber of a centrifuge. The fabric cloth being investigated was inserted as the barrier between the empty and dust-containing sides of this chamber. Each side of the chamber is a glass vial (2.1 cm diameter by 4 cm length) with a transfer surface between the two vials of 1.13 cm2. The chamber was rotated at 25 rotations per minute for 18 hours. Two 1/8" steel bearings, weighing 132 milligrams each, were inserted in the allergen vial. At the conclusion of the tumbling period, the empty side was tested for the presence of allergen by a sensitive enzyme, immunoassay, with a limit detection of 7.8 nanograms of dust mite allergen. Allergen loaded: 250,000 nanograms (0.250 grams) of fine dust containing 8750 nanograms of dust mite allergen. RESULTS:
Pristine transferred less than the detection limit of 7.8 nanograms of dust mite allergen.
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Klinične raziskave 