SEDL / STP / STP342-EB / STP44475S

A New Principle for Airborne Contamination Control in Clean Rooms and Work Stations

Whitfield, W. J.
Sandia Corp., Sandia Base, Albuquerque, N. Mex.

Mashburn, J. C.
Sandia Corp., Sandia Base, Albuquerque, N. Mex.

Neitzel, W. E.
Sandia Corp., Sandia Base, Albuquerque, N. Mex.

Pages: 14    Published: Jan 1963

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Abstract

A description is given of a new principle of closely controlling airborne contaminants in clean rooms and work stations that provides two basic improvements over the conventional principle. First, the system of air-flow patterns and filtration provides and maintains airborne contamination levels of less than 1000 particles per cu ft, 0.32 μ and larger. This level is attainable in both clean rooms and open-front work stations. Secondly, about 90 per cent of personnel restrictions required by conventional clean rooms are eliminated. Clean-room clothing is not needed; and, in most installations, air showers and entry ways also are not needed. Data about two clean rooms and a work station are presented, all of which are based on a new principle for airborne contamination control.