Airfire Air Purifier Filter Replacement Guide

This page provides official filter replacement guidance for all Airfire air purifiers.
Here you can learn when to replace your HEPA and carbon filters, how to identify the correct replacement filter for each Airfire model, and how to maintain optimal air purification performance for allergies, pets, and wildfire smoke.


How Often Should You Replace an Airfire Air Purifier Filter?

The replacement frequency of your Airfire air purifier filter depends on usage conditions and air quality.

General recommendations:

  • HEPA filters: every 6–12 months

  • Carbon filters: every 3–6 months

  • Homes with pets, smoke, or wildfire exposure may require more frequent replacement

Usage Scenario Recommended Replacement Frequency
Normal household use Every 6–12 months
Homes with pets Every 3–6 months
Smoke or wildfire conditions Every 3–4 months
Heavy daily use Every 3–6 months

Signs That Your Airfire Filter Needs Replacement

You should replace your Airfire filter if you notice any of the following:

  • Reduced airflow from the air purifier

  • Persistent odors remain after operation

  • The filter replacement indicator is on

  • Visible dust buildup or discoloration on the filter

  • Worsening allergy or respiratory symptoms

Replacing the filter on time helps maintain maximum filtration efficiency and prolongs the life of your air purifier.


Airfire Filter Compatibility by Model

Use the table below to identify the correct replacement filter for your Airfire air purifier model.

Airfire Model Compatible Filter Model Replacement Frequency
AP304 AP303 / AP304 / AP307 / AP407 5–6 months
AP201 AP201 2 months
AP202 AP201 2 months
AP206 AP206 2–3 months
AP401 AP401 / AP402 3–4 months

Always use official or fully compatible replacement filters to ensure proper fit and performance.


How to Replace an Airfire Air Purifier Filter

Follow these simple steps to replace your Airfire filter safely:

  1. Turn off and unplug the air purifier

  2. Open the filter cover or back panel

  3. Remove the old filter and dispose of it properly

  4. Insert the new Airfire replacement filter

  5. Close the cover and reset the filter indicator if applicable

For detailed instructions, refer to the user manual for your specific model.


Where to Buy Official Airfire Replacement Filters

To ensure optimal performance and long-term reliability, we recommend purchasing official Airfire replacement filters or verified compatible models.

Official replacement filters are designed to:

  • Maintain original filtration efficiency

  • Fit securely without air leakage

  • Effectively capture dust, allergens, pet dander, and smoke particles

You can find compatible replacement filters on our official store or authorized sales channels.


Airfire Filter Replacement FAQ

Can I wash or reuse an Airfire HEPA filter?
No. Airfire HEPA filters are not washable and should be replaced when dirty.

Are third-party filters compatible with Airfire air purifiers?
Some third-party filters may fit, but performance and filtration quality are not guaranteed.

Does replacing the filter improve air quality immediately?
Yes. A new filter restores proper airflow and filtration efficiency.

How do I reset the filter replacement indicator?
Reset instructions vary by model. Please refer to your specific user manual.

What happens if I don’t replace the filter on time?
Delayed replacement can reduce air purification efficiency and may strain the motor.


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