UV air filters cut airborne asthma triggers, study finds

Ultraviolet air filters might help rid a person's home of asthma triggers, a new study suggests. Installing one type of UV air filter in heating, ventilation and air conditioning systems led to a more than twofold decrease in microbes linked to asthma, researchers reported recently at the annual meeting of the American Academy of Allergy, Asthma & Immunology in Philadelphia.