1. Introduction
This user manual provides essential information for the DAODEFUL FA500 Replacement Filter. Designed for optimal air purification, this filter is compatible with FAMREE FA500 and Aiper KJ200 Air Purifiers. It features a 2-stage filtration system, combining an H13 True HEPA filter with a high-efficiency activated carbon filter to capture various airborne particles and odors.

Image: Two FA500 replacement filters, ready for installation.
2. Compatibility
The FA500 Replacement Filter is specifically engineered to fit and function seamlessly with the following air purifier models:
- FAMREE FA500 Air Purifier
- Aiper KJ200 Air Purifier
Using this filter with non-compatible models may result in reduced performance or damage to your air purifier.

Image: FA500 filters demonstrating compatibility with FAMREE FA500 and Aiper KJ200 air purifiers.
3. Setup and Installation
Follow these general steps to install your new FA500 Replacement Filter. Always refer to your specific air purifier's user manual for detailed, model-specific instructions.
- Power Off: Ensure your air purifier is turned off and unplugged from the power outlet before beginning the installation process.
- Access Filter Compartment: Locate and open the filter compartment of your air purifier. This usually involves removing a back panel or base cover.
- Remove Old Filter: Carefully remove the used filter. Dispose of the old filter according to local regulations.
- Unpack New Filter: Take the new FA500 Replacement Filter out of its packaging. Important: Ensure all plastic wrapping is removed from the filter before installation. Failure to do so will prevent proper air circulation and filtration.
- Insert New Filter: Insert the new filter into the compartment, ensuring it is oriented correctly. There may be arrows or guides indicating the proper direction.
- Close Compartment: Securely close the filter compartment.
- Power On: Plug in your air purifier and turn it on. Some air purifiers may require you to reset a filter life indicator after replacement.
4. Operating Principles and Performance
The FA500 Replacement Filter utilizes a dual-stage filtration system to effectively clean the air in your environment:
- H13 True HEPA Filter: This layer is designed to capture 99.97% of airborne particles as small as 0.3 microns. This includes common allergens such as pollen, dust mites, pet dander, and mold spores, as well as fine particulate matter.
- High-Efficiency Activated Carbon Filter: The activated carbon layer works to absorb various household odors, volatile organic compounds (VOCs), smoke, cooking smells, and pet odors, leaving your air fresher.

Image: Close-up view of the H13 True HEPA and Activated Carbon filter layers.

Image: The filter's effectiveness against common indoor air pollutants.
5. Maintenance and Storage
Proper maintenance and storage ensure the longevity and effectiveness of your FA500 Replacement Filter.
Filter Replacement Frequency
For optimal performance and air quality, it is recommended to replace the FA500 filter once every 6 to 12 months. This duration can vary depending on air quality, usage frequency, and the presence of pets or smokers in your environment. A noticeable decrease in air purifier performance, increased noise, or persistent odors may indicate a need for earlier replacement.
Storage
If you are storing spare filters, keep them in their original sealed packaging in a cool, dry place away from direct sunlight and extreme temperatures. This prevents premature degradation of the filter material and maintains its effectiveness until use.
6. Troubleshooting
If you encounter issues after replacing your filter, consider the following common scenarios:
- Air Purifier Not Turning On: Ensure the filter compartment is securely closed and the air purifier is properly plugged into a working power outlet.
- Reduced Airflow: Double-check that all plastic packaging has been removed from the new filter. Verify the filter is inserted correctly according to the air purifier's manual.
- Persistent Odors: While the activated carbon layer is effective, severe or unusual odors might require additional ventilation or investigation of the odor source. Ensure the filter is new and not expired.
- Filter Indicator Light Remains On: Many air purifiers have a filter reset button or procedure. Consult your air purifier's manual for instructions on how to reset the filter life indicator after replacement.
For issues unrelated to the filter or persistent problems, refer to your air purifier's specific troubleshooting guide or contact the air purifier manufacturer's customer support.
7. Specifications
| Attribute | Detail |
|---|---|
| Brand Name | DAODEFUL |
| Model Info | FA500 |
| Item Weight | 2.42 pounds (approx.) |
| Product Dimensions | 13.96 x 9.96 x 1.53 inches |
| Material Type | Polyester (filter media) |
| Included Components | 2 Pack 2-IN-1 FA500 H13 True Hepa Filter, True Hepa Filter and activated carbon filter. |
| Compatible Devices | FAMREE FA500 Air Purifier, Aiper KJ200 Air Purifier |
8. Customer Support
If you have any questions, concerns, or require assistance regarding your DAODEFUL FA500 Replacement Filter, please do not hesitate to contact our customer service team. We are committed to providing satisfactory solutions and support.

Image: Our customer service team is available to assist you.

