Abstract
We measured the airborne and floor dust allergen levels of the cat ( Fel d 1), dog ( Can f 1), and mite ( Der I and Der II) allergens in 13 houses. Airborne allergens were sampled with a low-noise air sampler for 5 to 7 days in the living rooms where the inhabitants were living as usual. The mean levels of airborne Fel d I and Can f I in houses with cats or dogs were 5960 and 2880 pglm 3; respectively, which were about 160 and 100 times higher than levels of airborne Der I. In floor dust the mean levels of Fel d I and Can f I were 322 and 236 μg/gm fine dust, respectively which were 59 and 10 times higher than the levels of Der I. These results suggest that the airborne cat and dog allergens might be important sources of allergens for persons who live in a house with those animals, because the absolute allergen levels in both the air and dust are significantly higher than those of mite.
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