We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAcceptable levels for breathing resistance of respiratory apparatus.AuthorsBentley RA; Griffin OG; Love RG; Muir DC; Sweetland KFPublicationArchives of environmental health, 1973, Vol 27, Issue 4, p273ISSN0003-9896Publication typearticleDOI10.1080/00039896.1973.10666370