作者: Robert Brockman
DOI:
关键词:
摘要: A respiration hood assembly is effected from a thin-walled headpiece nested within the periphery of mating exterior housing that includes filtered aperture. The engagement between and also useful in capturing one edge plastic membrane skirt thus suspended to drape over person wearing headpiece. battery powered electric fan deployed draw ambient air through vent aperture into space shrouded by skirt. arrangement retaining other fibrous towels or tissue extend usefulness parallel connection provided motor vehicle period electrical excitation.