Air filter monitoring device

Details Air filter monitoring device Air filter monitoring device

1998-01-12

1999-06-29

Smith, Duane S.

Gas separation: apparatus

With signals, indicators, measuring, or testing means

96418, 96419, 116DIG25, B01D 4642

Patent

active

059171413

ABSTRACT:
An air filter monitoring device that includes an attachment mechanism for attaching the monitoring device to the cover grate of an air return of an air conditioning system and a first and a second air flow actuated switch wired electrically in series with an alerting device, such as a light emitting diode and/or an audible alarm, each having an air resistance plate positioned within an air flow chamber. The air flow chamber is formed within a housing having an adjustable air intake inlet in connection with the air flow chamber. Air flowing through the air flow chamber within a range between a first and a second predetermined value causes the first and second air flow actuated switches to activate the alerting device.

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