Open AccessEffects of HEPA Air Cleaners on Unscheduled Asthma Visits and Asthma Symptoms for Children Exposed to Secondhand Tobacco Smoke
Author(s) -
B. P. Lanphear,
R. W. Hornung,
J. Khoury,
K. Yolton,
M. Lierl,
A. Kalkbrenner
Publication year - 2011
Publication title -
carolina digital repository (university of north carolina at chapel hill)
Language(s) - English
DOI - 10.17615/thny-9e69
Subject(s) - hepa , secondhand smoke , asthma , environmental health , medicine , tobacco smoke , toxicology , immunology , engineering , filter (signal processing) , biology , electrical engineering