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Home Air Filter Replacement Basics

Change HVAC filters on time

This guide covers replacing home HVAC filters: find the correct size and MERV rating, replace every 1-3 months depending on usage, and insert with correct airflow direction to protect air quality and equipment.

Get the right filter

Check size and recommended MERV for your system.

Replace regularly

Swap every 1-3 months or per usage and environment.

Install correctly

Follow airflow arrows; ensure a snug fit without gaps.

Note the date

Label the install date and set reminders for the next change.

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