filter-type respirator

filter-type respirator

[′fil·tər ‚tīp ′res·pə‚rād·ər]
(engineering)
A protective device which removes dispersoids from the air by physically trapping the particles on the fibrous material of the filter.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.