01659nam 2200517Ia 450 991071114700332120180711120942.0GOVPUB-C13-19a7c0d2140a282e27de870a34e23aed(CKB)5470000002480542(OCoLC)957470222(OCoLC)995470000002480542(EXLCZ)99547000000248054220160829d1954 ua 0engtxtrdacontentcrdamediacrrdacarrierGaylord Clearair Ventilator /Carl W. Coblentz, Paul R. AchenbachGaithersburg, MD :U.S. Dept. of Commerce, National Institute of Standards and Technology,1954.1 online resourceNBS report ;31711954.Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from PDF title page.Includes bibliographical references.Air filtersTestingVentilationAir filtersTestingfastVentilationfastAir filtersTesting.Ventilation.Air filtersTesting.Ventilation.Coblentz Carl W1388746Achenbach Paul R1389871Coblentz Carl W1388746United States.National Bureau of Standards.NBSNBSOCLCOOCLCFOCLCQBOOK9910711147003321Gaylord Clearair Ventilator3482283UNINA