Air filter replacement in Washington, DC typically costs $40–$80 for an engine air filter, or $45–$110 for a cabin air filter. They are different filters in different places — a quote for one is not a quote for the other.
Typical in Washington, DC: engine air filter $40–$80; cabin air filter $45–$110.
Weak AC airflow, musty cabin air, or visibly dirty filters at inspection — a routine job, not an emergency.
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Data by Servik — verified local pros from official license records and public sources. Cost figures are typical ranges, not quotes; a pro's written estimate is the real number.