How often should I change the HEPA filter in my air purifier?

Although it depends on the specific filter you have, as a rule of thumb, replaceable HEPA filters should be replaced every 6-12 months, depending on air quality and environmental factors. Carbon pre-filters should be replaced every 3 months, depending on air quality and environmental factors.

Table of Contents

How long does a HEPA air filter last?

It’s generally recommended to change them along these timelines: True HEPA: 8,760 usable hours or about every 12 months. Activated Carbon: 8,760 usable hours or about every 12 months.

Can you clean a HEPA air purifier filter?

A HEPA filter marketed as “permanent” should be cleaned by gently using a vacuum cleaner to suck away dust and debris from the surface of the filter. Water should not be used on these types of filters.

How do you clean a permanent HEPA filter?

How to Clean a Permanent HEPA Filter

Remove Filters. Permanent HEPA filters are generally found in air purifiers.
Clean the Pre-Filters. Permanent HEPA filters rarely come alone.
Vacuum the HEPA Filter.
Reassemble.
Check the Manual.
Remove Filters.
Clean Pre-Filters.
Rinse.

What do you do with old HEPA filters?

Here are a few disposal tips you can follow.

Immediately Put Your Old Filter Into a Plastic Bag.
Don’t Shake a Dirty Air Filter.
Tape the Plastic Bag Shut.
Dispose of Old Air Filters in an Outside Trash Can.
Never Leave Your HVAC System Without a Filter.

How do I know if I need to replace my air purifier filter?

Take a look at the white sheet to see if it has turned gray or black, and the more dirt on that sheet, the more likely it is that your filter needs changing. Electricity Bill Spike Another sign that your air filter may need changing is a sudden spike in your electricity or power bill over several months.

What happens if you never change your air filter?

A dirty filter reduces the airflow to your HVAC system and causes it to work harder. It uses more energy, which costs you more money. It also might not be able to keep your home at the proper temperature. This means it may have to run for longer periods, which strains the system.