Coway AP-1005AH / AP-1004AH Air Purifier Replacement Filter Set User Manual

1. Product Overview

This replacement filter set is specifically designed for use with Coway AP-1005AH and AP-1004AH Air Purifier models. It includes a True HEPA filter, an Activated Carbon (Deodorizing) filter, and a Pre-Filter, providing comprehensive air purification.

True HEPA Filter: Captures ultra-fine particles as small as 0.02 μm, including bacteria, dust, allergens, and certain viruses.
Activated Carbon Filter: Effectively absorbs harmful gases such as benzene, formaldehyde, other volatile organic compounds (VOCs), and unpleasant odors.
Pre-Filter: Designed to capture larger particles like dust, pet dander, and lint, extending the life of the HEPA and Carbon filters.

Front and back view of the HEPA and Activated Carbon filters, indicating compatibility with Coway AP-1004AH/AP-1005AH. — Figure 1: Front and back view of the HEPA and Activated Carbon filters, compatible with Coway AP-1004AH/AP-1005AH.

Diagram illustrating the two-stage filtration process: HEPA filter capturing ultrafine particles and Activated Carbon filter absorbing harmful gases. — Figure 2: Diagram illustrating the two-stage filtration process.

2. Installation Instructions

Follow these steps to replace the filters in your Coway AP-1005AH or AP-1004AH Air Purifier. Always refer to your air purifier's original manual for specific instructions on opening the filter compartment.

Power Off: Ensure your air purifier is turned off and unplugged from the power outlet before beginning the filter replacement process.
Access Filter Compartment: Open the front cover or filter access panel of your Coway air purifier.
Remove Old Filters: Carefully remove the used filters. Dispose of them according to local regulations.
Install New Filters: Insert the new filters in the correct order. The typical order for these models is:

First, install the Pre-Filter.
Next, install the Activated Carbon Filter.
Finally, install the True HEPA Filter.

Exploded view showing the correct order of filter installation: Carbon Filter, Pre Filter, and Hepa filter. — Figure 3: Correct filter installation order: Carbon Filter, Pre Filter, and HEPA filter.

Close Compartment: Securely close the front cover or filter access panel.
Restore Power: Plug the air purifier back into the power outlet and turn it on.
Reset Filter Indicator (if applicable): If your air purifier has a filter replacement indicator light, follow your air purifier's manual to reset it. This usually involves pressing and holding a specific button for a few seconds.

3. Operating Principles

Once installed, these filters work in conjunction with your Coway air purifier to clean the air. Air is drawn into the unit, passes through the multi-stage filtration system, and then clean air is released back into the room.

The Pre-Filter captures large airborne particles.
The Activated Carbon Filter neutralizes odors and harmful gases.
The True HEPA Filter traps microscopic allergens and pollutants.

For optimal performance, ensure the air purifier is placed in an open area, away from obstructions, to allow for proper air circulation.

4. Maintenance

Regular filter replacement is crucial for maintaining the efficiency and effectiveness of your air purifier. The lifespan of filters can vary based on air quality and usage frequency.

HEPA Filter: Typically recommended for replacement every 12 months.
Activated Carbon Filter: Typically recommended for replacement every 6-12 months.
Pre-Filter: This pre-filter is part of the replacement set and should be replaced along with the other filters.

Always consult your Coway air purifier's original manual for the most accurate and recommended filter replacement schedule for your specific model.

5. Troubleshooting

Common Issues and Solutions:

Problem	Possible Cause	Solution
Reduced airflow or efficiency	Filters are clogged or incorrectly installed.	Check filter installation. Replace filters if they are past their recommended lifespan.
Persistent odors	Activated Carbon filter is saturated.	Replace the Activated Carbon filter.
Filter indicator light remains on after replacement	Indicator not reset.	Refer to your air purifier's manual for instructions on how to reset the filter indicator.

6. Specifications

Compatibility: Coway AP-1005AH, Coway AP-1004AH Air Purifiers
Filter Types: True HEPA Filter, Activated Carbon (Deodorizing) Filter, Pre-Filter
Filtration Efficiency: HEPA captures particles down to 0.02 μm (bacteria, dust, allergens, viruses). Activated Carbon absorbs harmful gases (benzene, formaldehyde, VOCs, odors).
Package Contents: 1x True HEPA Filter, 1x Activated Carbon Filter, 1x Pre-Filter
Package Dimensions (approximate): Length: 38 cm, Width: 40 cm, Height: 5 cm
Package Weight (approximate): 1.1 kg

Close-up view of the pleated True HEPA filter. — Figure 4: True HEPA Filter.

Close-up view of the honeycomb structure of the Activated Carbon filter. — Figure 5: Activated Carbon Filter.

7. User Tips

Regular Checks: Periodically check your filters for visible dirt or discoloration, especially if you live in an area with high pollution or have pets.
Proper Fit: Ensure filters are seated correctly and securely in their compartments to prevent air leakage and maintain filtration efficiency.
Storage: Store spare filters in a cool, dry place, sealed in their original packaging until ready for use, to prevent premature degradation or contamination.

8. Warranty and Support

For any questions regarding the compatibility, installation, or performance of this replacement filter set, please contact the seller or manufacturer directly. Keep your purchase records for any potential support inquiries.

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