Housekeeping · 냉난방 관리

Check your HVAC filter monthly: washable versus disposable

ENERGY STAR advises checking central HVAC filters about monthly: clean reusable filters as instructed, but replace disposable ones. Wall-mounted air conditioners and air purifiers may use different systems.

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A clogged filter can restrict airflow and force HVAC equipment to work harder. But not all filters can be washed. Central HVAC, heat pumps and wall-mounted split units differ in access and maintenance, so start with the model manual.

Your try-it-at-home checklist

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Identify the model and filter type in its manual: disposable central HVAC, washable reusable, or wall-mounted indoor-unit filter.
Stop the system and follow its recommended power-off procedure. Do not open electrical cabinets, motors or refrigerant plumbing.
Open only the user-serviceable filter cover. Check for dust, tears and incorrect fit.
Replace disposable filters with the specified size and compatible rating. Clean only reusable filters using the manufacturer's permitted method; never wash a disposable filter.
Dry washable filters completely. Refit replacement filters in the indicated airflow direction, close covers and check for unusual noise.
Inspect central HVAC filters about monthly during heavy use. If unusual odors, persistent moisture, suspected mold or poor performance remain, arrange professional service.

Your try-it-at-home checklist

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