How Often Should I Change My AC Filter in Lake Charles?
Every one to three months for most homes, more often with pets, allergies or after dusty work. Because systems here run so much of the year, check it monthly in summer.
Request an HVAC technicianFind the size
It's printed on the edge of the old filter: length, width and thickness.
Which way does it go?
The arrow points toward the blower and away from the return grille, in the direction air flows.
Which type?
Basic pleated filters suit most homes. Very high-rated filters can choke airflow on systems not designed for them; ask a technician.
Why it matters
A clogged filter makes the system work harder, freezes coils and lets dust coat the coil, which costs efficiency.
Set a reminder
Write the date on the filter's edge when you install it, or set a phone reminder.
Other upkeep
See the HVAC calendar and maintenance.
Where is my filter?
Usually behind a return grille in a wall or ceiling, or in a slot at the air handler or furnace. Some homes have more than one return, each with its own filter.
After storms and renovations
Dust from drywall work or debris after a storm clogs filters fast. Check them weekly for a while afterwards.
Washable filters
Washable filters can work, but they must be fully dry before going back in. In a climate this humid, a damp filter grows mold quickly, which is why many homeowners stick with disposable ones.
Pets and allergies
Homes with pets or allergy sufferers often need monthly changes. If you see dust building up on vents and furniture faster than usual, check the filter first.
Filter slots that leak
If the filter slot at the air handler has no cover, dusty attic air gets pulled around the filter. A simple slot cover fixes it.
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