Apparatus for air filtration and sound masking

Details Apparatus for air filtration and sound masking Apparatus for air filtration and sound masking

1993-09-09

1994-11-01

Bushey, Charles S.

Gas separation: processes

Filtering

55318, 553851, 55467, 55486, 96134, 181206, 181295, 381 71, 422 4, B01D 4600

Patent

active

053604695

ABSTRACT:
An apparatus for enhancing the environmental quality of work and living spaces which combines a high efficiency particulate air filter and an optional gas element and electric blower and a sound-masking device for generating pink noise. The sound-masking device is designed to improved the affective state, and thereby the task-performance, of persons in the space being treated.

REFERENCES:
patent: 2945554 (1960-07-01), Berly
patent: 4268285 (1981-05-01), Mason
patent: 4747364 (1988-05-01), Horowitz
patent: 5069876 (1991-12-01), Oshinsky
patent: 5192342 (1993-03-01), Baron et al.
Nagar and Pandey "Affect and Performance on Cognitive Tasks as a Function of Crowding and Noise" J. Appl. Soc. Phys. 17, 147-157 (1987).
Kurp "Shhh--inventor is trying to concentrate" Times Union, C-12, Albany, N.Y., Sunday, Mar. 7, 1993.

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