How to Replace Your AirDoctor 4000 Filters
Keeping your AirDoctor 4000 running smoothly is simple. The filters in your unit trap particles and pollutants you don’t want in your air, so changing them regularly keeps your home cleaner and the purifier working efficiently.
When to Replace
Under normal conditions, filters should be replaced about every six months. This can vary depending on how often you use your unit and your air quality.
Your AirDoctor will alert you when it’s time—just check the filter indicator lights on the control panel.
Step-by-Step Replacement
You can follow our short tutorial here:
👉 How to Replace Your AirDoctor 4000 Filter
Or follow these quick steps:
- Turn off and unplug your AirDoctor 4000.
- Remove the front cover by gently pulling from both sides.
- Take out the old filters using the tabs.
- Insert the new filters, making sure the arrows face the airflow direction.
- Put the cover back in place.
- Reset the filter indicator light by holding down the button until it clears.
Tips
- Wipe the exterior and pre-filter area with a soft, dry cloth before installing new filters.
- Always use genuine AirDoctor 4000 replacement filters for the best results.
- If your area is dusty or smoky, you may need to change filters more often.
Watch the Video
For a visual guide, check out our official tutorial:
🔗 How to Replace Your AirDoctor 4000 Filter