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How Often To Change Air Purifier Filters

Clean air is vital for a healthy lifestyle, and an air purifier can provide you with that. However, don’t be surprised that many people own an air purifier yet don’t have a single clue on how often to change the air purifier filter. A poorly maintained air purifier with dirty filters cannot remove dust, debris, and other particles in the air, which defeat its entire purpose. Today’s post will address when and how often you should change a filter for maximum efficiency. Whether it is a pre-filter, HEPA filter, or activated carbon filter, we got you covered.
Short answer
One is a filter, and the other is an appliance.

 

How Often Do You Need To Change The Air Purifier Filter?

Most manufacturers will recommend changing the air purifier filter every 3 to 6 months for optimal performance. That said, you should straightaway clean or replace the filter when the air purifier’s filter indicator light turns red. If you need the exact time frame, look into the original instruction manual and follow the suggested filter change schedule.

Most mechanical air purifiers come with several types of filters that require changing at different times. It is recommended that you change them according to the original timeline rather than replace them all in one go. So to be more thorough, a washable pre-filter requires cleaning every 1-4 weeks depending on the filter size and how dirty is the surrounding air. A true HEPA filter is not washable and must be replaced every 6 to 12 months, depending on the room air quality. A non-washable carbon pre-filter needs to change every 3 months, while a standalone activated carbon filter needs to change every 6 to 12 months.

It is always better to replace the filter earlier than later. You will be at less risk of inhaling airborne pollutants and suffer from allergy symptoms like cough, sneeze, red eyes, itchiness. If you are an allergic or asthmatic person, you can change the filter more frequently every 30 to 60 days to ensure there is always clean air. Check on the filter from time to time by opening the air purifier removable panel. If it is heavily clogged, torn, or moldy, stop using the air purifier until you replace the filter. More critically, when there is a drop in the indoor air quality, even with a running air purifier, do not hesitate to change the filter.

How Do I Change The Air Purifier's Filter?

Changing an air purifier filter is an easy task and will take you less than 5 minutes to do so. First, open the removable panel by popping out the cover or sliding out the filter. Take out the old filter one by one and properly dispose of it. Unpack the new filters and insert them carefully in reverse order. If it is a washable pre-filter, vacuum it gently with a brush attachment, or soak it in lukewarm water with soap to remove stubborn dirt. Remember to leave the pre-filter completely air-fry before inserting it back. Close the removable filter and let the air purifier run at max speed for a couple of hours. Once you have successfully replaced the filter, reset the filter change indicator to let the air purifier keep track of the following replacement date. Otherwise, keep a mental note or set a calendar reminder to alert you when the day comes.

Max Fernandez

A loving father and a dedicated reviewer for airfuji.com with more than 1000 air purifiers under his belt. Max Fernandez is also one of the million patients currently suffering from asthma. Feel free to nudge him if you have any questions.
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