Validation of a recommended approach to recirculation of industrial exhaust air.
Contributors: National Institute for Occupational Safety and Health. Division of Physical Sciences and Engineering.
Series: DHEW publication -- no. (NIOSH) 79-143 A,B
Publisher: Dept. of Health, Education, and Welfare, Public Health Service, Center for Disease Control, National Institute for Occupational Safety and Health; for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1979
Place of publication: Cincinnati; Washington
Language: eng
Subjects: Air -- standards.; Ventilation -- standards.
Other titles: A Recommended approach to recirculation of exhaust air.
Notes: On cover: NIOSH research report.

A supplement and expansion of a previous publication : A recommended approach to recirculation of exhaust air.
Table of contents: title: v.1: Spring grinding, chrome plating, dry cleaning, welding, and vapor degreasing operations.; title: v.2: Lead battery, woodworking, metal grinding, and enamel blending operations.