At. Johnson et Cm. Grove, RESPIRATOR MASK DESIGN MODULES AND THEIR INTERACTIONS, American Industrial Hygiene Association journal, 54(12), 1993, pp. 749-751
The respirator performance rating table (PRT) scheme has been offered
as a way to organize physiological information to be useful for mask d
esign. Designers do not usually deal exclusively with one kind or anot
her of mask physiological effect. This paper presents normal mask desi
gn modules and how they relate to mask physiological effects as given
in the PRT.