Reducing hay fever symptoms with dust and pollen precipitations.
D000389:Air Conditioning; D011232:Chemical Precipitation; D004391:Dust; D004560:Electricity; D006801:Humans; D008297:Male; D008722:Methods; D011058:Pollen; D006255:Rhinitis, Allergic, Seasonal / Q000517:prevention & control*
D004391:Dust