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MAP20071020508Brosseau, L.M.An Empirical model for estimating the collection efficiency of dust-mist respirators / L.M. Brosseau, J.S. Evans and M.J. EllenbeckerSumario: This paper compares experimental measurements of filter performance with predictions of aerosol collection by dust-mist respirators using the single fibre efficiency model and an empirical model developed by the authors. The former, a theoretically-based semi-empirical model, indicates that mechanical phenomena such a impaction, interception and diffusion are responsible for omly a fraction of the collection efficiency of dust-mist respirators, i.e. 30-70% depending of particle sizeEn: The Annals of occupational hygiene. - Oxford [etc.]. - nº 2, April 1993 ; p. 135-1501. Higiene industrial. 2. Contaminantes químicos. 3. Aerosoles. 4. Equipos respiratorios. 5. Filtros. 6. Control de contaminantes. 7. Métodos de control. I. Evans, John S.. II. Ellenbecker, Michael J.. III. Title. IV. Título: The Annals of occupational hygiene.