Control system for air cleaner
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United States of America Patent
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May 2, 1989
Grant Date -
N/A
app pub date -
Oct 16, 1987
filing date -
Oct 20, 1986
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for controlling an air cleaner having high ability to remove smoke but low ability to remove gas with use of a gas sensor having higher sensitivity to gas than to smoke. The air cleaner is brought into operation when the gas sensor detects the gas released with the occurrence of smoke. The progress of removal of smoke is detected from the saturation of the gas sensor output, whereupon the cleaner is brought out of operation. Preferably, the air cleaner is held in operation for a predetermined period of time after the detection of the saturation to fully remove the smoke.
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