1. Introduction
This manual provides essential information for the proper installation, maintenance, and use of your MORENTO HY4866 Genuine Air Purifier Replacement Filters. Using genuine filters ensures optimal performance and extends the lifespan of your MORENTO HY4866 Air Purifier. Please read these instructions carefully before replacing your filters.
2. Product Overview
The MORENTO HY4866 Replacement Filters are designed to provide superior air purification for your compatible air purifier model. Each package contains two filters, ensuring comprehensive filtration from both sides of the unit.

Image: MORENTO HY4866 Air Purifier Replacement Filter shown in its original packaging, highlighting its genuine status.
Key Features:
- Genuine Fit: Specifically designed for MORENTO HY4866 & HY4866-WF Air Purifiers, ensuring a perfect fit and maximum filtration efficiency.
- Multiple Stack Filtering Technology: Incorporates honeycomb activated carbon particles and H13 True HEPA filter layers for enhanced purification.
- H13 True HEPA Filtration: Captures at least 99.97% of airborne particles 0.3 microns in size, including dust, pollen, pet dander, smoke, and VOCs.
- Honeycomb Activated Carbon: Efficiently absorbs and decomposes odors from pets, smoke, and cooking fumes, contributing to a fresh air environment.
- Dual Filter System: Two real HEPA filters work simultaneously to effectively capture pollutants from all directions.
- Recommended Lifespan: Each filter has a service life of approximately 2200 hours, with replacement recommended every 3-6 months depending on usage.

Image: A visual representation of the filter's internal structure, detailing the honeycomb activated carbon particles and the H13 True HEPA filter for comprehensive air purification.
3. Setup & Installation
Follow these steps to correctly install or replace the filters in your MORENTO HY4866 Air Purifier:
- Turn off and Unplug: Ensure the air purifier is turned off and unplugged from the power source. The power cord is typically located on the left side of the device.
- Open Purifier Cover: Gently open the purifier cover by releasing the notches on both sides. Remove the old filter.
- Install New Filter: Remove the new filter from its protective plastic bag. Install the new filter, ensuring the side marked "FRONT" faces outward and the active carbon face is directed inward.
- Reset Filter Indicator: After replacing the filter and closing the cover, plug in the air purifier and turn it on. Press and hold the filter button for 5 seconds until you hear 3 beeps to complete the filter reset.

Image: A four-step visual guide demonstrating how to safely replace the air filter in the MORENTO HY4866 Air Purifier, including unplugging, opening, installing, and resetting the filter indicator.
4. Operating Instructions
While the filters themselves do not have operational controls, their performance is directly linked to the air purifier's settings. Refer to your MORENTO HY4866 Air Purifier's main user manual for detailed operating instructions, including fan speeds, timer functions, and auto mode. The air purifier's display will indicate the air quality and filter life, helping you monitor performance.
5. Maintenance
Regular maintenance of your filters is crucial for maintaining optimal air quality and extending the life of your air purifier. The service life of the Genuine MORENTO HY4866 air purifier filter is generally 2200 hours. It is recommended to replace the filter every 3-6 months, depending on your usage environment and air quality conditions.

Image: Two MORENTO HY4866 filters, emphasizing the recommended replacement interval of every 3-6 months for best performance.
Tips for Extending Filter Life:
- Periodically vacuum the outer mesh of the filter to remove larger dust and debris.
- Avoid exposing the filters to water or liquids, as this can damage the filtration media.
- Always use genuine MORENTO replacement filters to ensure compatibility and performance. Off-brand filters may not meet HEPA standards, fit incorrectly, or damage your air purifier.

Image: A visual comparison highlighting the superior performance of Genuine MORENTO filters, which exceed HEPA standards, against imitation filters that often fail to meet these standards and may cause damage.
6. Troubleshooting
If you encounter issues related to your air purifier's filtration, consider the following:
- Filter Indicator Not Resetting: Ensure you press and hold the filter reset button for the specified 5 seconds until you hear three beeps. If the issue persists, re-check filter installation.
- Reduced Airflow or Odor: This often indicates a clogged filter. Replace the filters as recommended.
- Unusual Noises: Check if the filters are installed correctly and securely. Loose filters can cause rattling.
For further assistance, refer to your air purifier's main manual or contact MORENTO customer support.
7. Specifications
| Attribute | Detail |
|---|---|
| Brand | MORENTO |
| Model Number | HY4866 |
| Compatible Devices | MORENTO HY4866 & HY4866-WF Air Purifier |
| Material | Carbon Fiber (Activated Carbon) |
| Air Filter Construction | Pleated (HEPA) |
| MERV Rating | 13 |
| Product Dimensions | 12.28"L x 2.52"W x 10.91"Th |
| Item Weight | 839 Grams |
| Number of Items | 2 (Two-piece package) |
| Recommended Replacement | Every 3-6 months (or 2200 hours) |
8. Warranty & Support
Your MORENTO HY4866 Air Purifier Replacement Filters come with a 1-year warranty. For any questions, concerns, or warranty claims, please contact MORENTO customer support. You can typically find contact information on the product packaging or the official MORENTO website.







