Problem
The AC air filter becomes dirty much faster than expected.
Possible Causes
Excess dust in the home
Pets shedding hair
Clogged ductwork
Poor indoor air circulation
How To Fix It
Replace the air filter
Vacuum vents and surrounding areas
Keep doors and windows closed during cooling
Consider using higher quality filters
When To Call A Professional
If filters continue clogging quickly, duct cleaning or airflow inspection may be needed.