MAP20071018061 Respiratory protection Sumario: Respiratory protection come in various types: air-purifying, air-supplied, air-filtering, for toxic atmospheres, for lack of oxygen, etc. The safety professional must know what types are available and what is required for each separate situation, because this is crucial to the employees'life and health En: National safety news. - Chicago. - Vol, 116, nº 4, October 1977 ; p. 49-54 1. Seguridad e higiene en el trabajo . 2. Equipos de protección individual . 3. Equipos respiratorios . 4. Contaminantes químicos . 5. Contaminación atmosférica . 6. Vapores . 7. Gases tóxicos . 8. Mascarillas . I. Title. II. Título: National safety news.