Furnace Air Filter - How to Change It Properly

Summary by Krater

This video provides a step-by-step guide on how to replace an HVAC furnace air filter, covering safety precautions, filter orientation, rating systems like MERV and FPR, replacement frequency, and how to use adhesive air fresheners.

From the video

Answers: How do I replace my HVAC furnace air filter?

• HVAC furnace air filter replacement
• Air filter ratings (MERV and FPR)
• Airflow direction and placement
• Air filter replacement frequency
• Adding air fresheners to filters

What it concludes

• Turn off the HVAC unit, thermostat, or circuit breaker before changing the filter to prevent loose debris from entering the system.
• The airflow arrow on the filter must point toward the furnace blower.
• Higher MERV or FPR filter ratings trap more particles but allow less airflow.
• Buying air filters in bulk saves money and time.
• Fiberglass filters rated around 4 typically last up to 30 days and allow maximum airflow.