Earnmore 4 in 1 Air Purifier Filter with Pre-Filter, True HEPA Filter, Activated Carbon Filter and Cotton Filter for Air Purifier Black

• 1 If you purchased the Black Air Purifier (B07TGTDWJY), choose our original replacement filter for the best performance.
• 【4 layers of filtration】 Consists of pre-filter, high efficiency HEPA filter, activated carbon filter, cotton filter. Filters 99.97% of dust, pollen, odours and animal hair. The air filter captures particles of only 0.3 microns to improve health.
• 【Quick Installation】Open the bottom of the air purifier, take out the used filter and remove the plastic bag of the new filter, then put the new filter back into the air purifier.
• 【Use of Life】 The filter can work on average 6 months in a general environment. You may need to replace it sooner or later depending on the air quality in the area
• 【Professional After-Sales Service】Buy with confidence. If you have any problems, please contact us via Amazon email. We will try our best to satisfy your satisfaction.

1 US When should I replace filters? The air filter can be used for up to 6 months, depending on the frequency of using the air purifier. When the device works normally for 2000 hours, the time indicator continues to flash to remind you to replace the filter. If you need further help, feel free to contact our support. How to replace filters? To replace the air filters, follow the steps below: 1. First, turn off the air purifier, disconnect the air purifier and remove the air vent cover. 2. Take out the old air filter and dispose of it properly. 3. Unpack the new air filter. Put it in your purifier, make sure the tabs face outwards. 4. Place the air vent cover. 5. Connect and turn on the air purifier. Press the time button for 5 seconds, then the corresponding indicator will turn off, and the replacement filter reminder timer will be cleared.