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Midea HEPA Filter Replacement Instruction Manual

For Midea Tower Fan & Air Purifier Models AMS150-PB and MSF42B9ASV

1. Installation Guide

This section provides step-by-step instructions for safely replacing the HEPA filter in your Midea Tower Fan & Air Purifier.

Filter Replacement Steps:

  1. Power Off: Before beginning, ensure your Midea Tower Fan & Air Purifier is unplugged from the power outlet to prevent any electrical hazards.
  2. Locate Filter Compartment: Identify the filter access panel on the side or back of your Midea unit. Refer to your air purifier's main instruction manual if you have difficulty locating it.
  3. Open Panel: Gently open or unlatch the filter compartment cover.
  4. Remove Old Filter: Carefully pull out the used HEPA filter. It may appear discolored or dusty, which is normal as it has been trapping airborne particles. Dispose of the old filter responsibly according to local regulations.
  5. Insert New Filter: Unpack one of the new Midea HEPA replacement filters. Ensure the filter is oriented correctly as indicated by any arrows or labels on the filter or the unit. Slide the new filter firmly into the compartment until it is securely seated.
  6. Close Panel: Close the filter compartment cover, ensuring it latches securely.
  7. Restore Power: Plug your Midea Tower Fan & Air Purifier back into the power outlet.
  8. Reset Filter Indicator (if applicable): If your unit has a filter replacement indicator light, consult your air purifier's main manual for instructions on how to reset it after installing the new filter. This often involves pressing and holding a specific button for a few seconds.
A hand inserting a Midea HEPA filter into the side compartment of a dark blue Midea tower fan and air purifier.

This image illustrates the process of installing a Midea HEPA filter. A hand is shown gently sliding the filter into the designated slot on the side of the Midea 41-inch Bladeless DC Tower Fan & Air Purifier, highlighting the ease of replacement.

2. Filter Functionality

The Midea HEPA Filter is an integral component of your air purification system, designed to capture a wide range of airborne contaminants.

Key Features:

  • HEPA Filtration: These filters are engineered to capture up to 99.9% of airborne particles as small as 0.3 microns. This includes common allergens such as dust mites, pet dander, pollen, and mold spores.
  • Plasma Ion Technology Compatibility: When used with compatible Midea air purifiers featuring Plasma Ion Technology, the filter works in conjunction to further enhance air quality by neutralizing airborne pollutants.
  • Odor Reduction: The filter material also aids in reducing common household odors, contributing to a fresher indoor environment.
  • California Certification Requirements: These filters meet stringent California certification requirements, ensuring high standards of air purification performance.
Two Midea HEPA replacement filters, white with black frames, standing upright.

This image displays the two Midea HEPA replacement filters included in the pack. Each filter features a pleated white filtration material encased in a sturdy black frame, designed for optimal air purification.

3. Maintenance

Regular filter replacement is crucial for maintaining the optimal performance and efficiency of your Midea Tower Fan & Air Purifier.

Filter Replacement Schedule:

  • Indicator Light: The primary indicator for filter replacement is when the filter indicator light on your Midea air purifier illuminates. This light signals that the filter has reached its capacity and needs to be changed.
  • Environmental Factors: The lifespan of the filter can vary depending on usage frequency, air quality in your environment (e.g., presence of pets, smoking, high dust levels), and the size of the area being purified.
  • Visual Inspection: Even without the indicator light, if you notice a decrease in airflow, increased noise from the unit, or a persistent unpleasant odor, it may be time to inspect and potentially replace the filter.
  • Benefits of Timely Replacement: Replacing the filter promptly ensures continued effective removal of airborne particles, maintains optimal airflow, and prolongs the lifespan of your air purifier.

4. Troubleshooting

If you encounter issues after replacing your Midea HEPA filter, consider the following common scenarios:

Common Issues and Solutions:

  • Filter Indicator Light Remains On:
    • Ensure the new filter is correctly installed and the compartment cover is fully closed.
    • Refer to your air purifier's main instruction manual for specific steps on how to reset the filter indicator light. This usually involves pressing and holding a designated button for several seconds.
  • Reduced Airflow or Ineffective Purification After Replacement:
    • Verify that the new filter is the correct model (FQ150CJ-2) and is compatible with your Midea AMS150-PB or MSF42B9ASV unit.
    • Check for any obstructions around the air intake or output vents of the air purifier.
    • Ensure the filter is not damaged or bent during installation.
  • Unusual Odors After Replacement:
    • A slight new plastic smell may be present initially, which should dissipate quickly.
    • If a strong or persistent unusual odor occurs, ensure the filter is genuine Midea and not a counterfeit. Contact customer support if the issue persists.

If these troubleshooting steps do not resolve your issue, please contact Midea customer support for further assistance.

5. Product Specifications

Detailed specifications for the Midea HEPA Filter Replacement (2-Pack).

SpecificationDetail
BrandMidea
Model NumberFQ150CJ-2
ColourWhite
Product Dimensions19.2 x 12.95 x 1.78 cm
MaterialPlastic (Filter Media: HEPA)
Compatible ModelsMidea 41” Bladeless DC Tower Fan & HEPA Air Purifier (AMS150-PB, MSF42B9ASV)
Item Weight140 g (per filter)
Number of Items2 (2-Pack)

6. Warranty Information

Midea products are manufactured to high-quality standards and are backed by a manufacturer's warranty. For specific details regarding the warranty period and terms for your Midea HEPA Filter Replacement, please refer to the warranty documentation included with your original Midea Tower Fan & Air Purifier unit or visit the official Midea website.

This filter is a consumable item, and its lifespan is dependent on usage and environmental conditions. The warranty typically covers manufacturing defects, not normal wear and tear or the natural depletion of the filter's capacity.

7. Customer Support

For any questions, concerns, or technical assistance regarding your Midea HEPA Filter Replacement or your Midea Tower Fan & Air Purifier, please contact Midea customer support.

You can typically find contact information (phone numbers, email, or online support portals) on the official Midea website or in the original product manual for your air purifier.

When contacting support, please have your product model number (AMS150-PB or MSF42B9ASV) and the filter part number (FQ150CJ-2) ready to assist them in providing efficient service.

© 2025 Midea. All rights reserved. This manual is for informational purposes only.

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