Respiratory Protection

Abstract

A respirator is an enclosure that covers the nose and mouth or the entire face or head. Respirators can have two general types of fit: (1) tight-fitting that is, quarter masks, which cover the mouth and nose; and half masks, which cover the face from the hairline to below the chin; and (2) loose-fitting, such as hoods, helmets, blouses, or full suits that cover the head completely. There are two major classes of respirators: (1) air-purifying to remove contaminants from the air, and (2) atmosphere-supplying to provide clean, breathable air from an uncontaminated source. As a general rule, the latter-type respirator is used for more hazardous exposures.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1998
Accession Number
ADA400590

Entities

Organizations

  • United States Department of Labor

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Air Supplies
  • Education
  • Engineering
  • Environmental Pollutants
  • Gas Masks
  • Health
  • Health Services
  • Maritime Industry
  • Materials
  • New York
  • Occupational Safety And Health
  • Protective Equipment
  • Safety
  • Safety Engineering
  • Safety Equipment
  • Standards
  • Training

Readers

  • Materials Science