Self-cleaning is not generally satisfactory, however, and manually cleaned units with filtration cells that can be removed for cleaning are ... Extremely effective air filtration is possible for a few feet directly in front of the HEPA filter (Zwemer and Karibo, 1973), and generally, the flow of ... HEPA filtration is recommended for portable units (King, 1973). ... Humidifiers can act as sources of molds and bacteria, contributing to immediate type I hypersensitivity reactions and, in heavily exposedanbsp;...
|Title||:||Allergic Diseases of Infancy, Childhood, and Adolescence|
|Author||:||Charles Warren Bierman, David S. Pearlman|
|Publisher||:||W.B. Saunders Company - 1980-01-01|