1. Product Overview
This GRASKY HEPA filter is designed as a replacement part for the Xiaomi Mijia Deerma MJXCQ01DY handheld robot vacuum cleaner. Regular replacement of the filter is essential for maintaining optimal vacuum performance and improving indoor air quality by reducing household odors and trapping fine particles.

Image 1.1: Top view of the GRASKY HEPA filter, showing the pleated filter material within a circular frame.
2. Compatibility
This HEPA filter is specifically compatible with the following vacuum cleaner model:
- Xiaomi Mijia Deerma MJXCQ01DY Handheld Robot Vacuum Cleaner
Please verify your vacuum cleaner model before purchasing to ensure proper fit and function.
3. Installation
Follow these steps to install or replace the HEPA filter in your vacuum cleaner:
- Power Off: Ensure the vacuum cleaner is turned off and unplugged from any power source before beginning the installation process.
- Locate Filter Compartment: Identify the filter compartment on your Xiaomi Mijia Deerma MJXCQ01DY vacuum cleaner. Refer to your vacuum cleaner's user manual if you are unsure of its location.
- Remove Old Filter: Carefully open the filter compartment and remove the old, used filter. Dispose of the old filter responsibly.
- Insert New Filter: Place the new GRASKY HEPA filter into the compartment, ensuring it is seated correctly and securely. The filter is designed for easy installation and removal.
- Close Compartment: Close the filter compartment cover firmly until it clicks into place.
- Test: Power on your vacuum cleaner to confirm proper operation.

Image 3.1: Close-up of the filter's pleated structure, designed to capture fine dust and allergens.
4. Maintenance
To ensure optimal performance of your vacuum cleaner and the HEPA filter, adhere to the following maintenance guidelines:
- Replacement Frequency: It is recommended to replace the HEPA filter every 3 to 6 months, depending on usage frequency and household environment (e.g., presence of pets, allergies). Frequent replacement helps maintain strong suction and effective air filtration.
- Cleaning: While some filters can be washed, this HEPA filter is generally designed for replacement rather than washing to maintain its filtration efficiency. Attempting to wash may damage the filter material and reduce its effectiveness.
- Inspection: Periodically inspect the filter for visible dirt, debris, or damage. If the filter appears heavily soiled or damaged, replace it immediately.
5. Specifications
| Feature | Detail |
|---|
| Product Type | HEPA Filter |
| Compatibility | Xiaomi Mijia Deerma MJXCQ01DY Handheld Robot Vacuum Cleaner |
| Item Model Number (Filter) | GDX-B11-27 |
| Dimensions | Approximately 95mm (diameter) x 21mm (height) |
| Item Weight | Approximately 1.76 ounces (50 grams) |
| Material | Filter paper, plastic frame |

Image 5.1: Side view of the HEPA filter, illustrating its approximate dimensions of 95mm in diameter and 21mm in height.
6. Troubleshooting
If you experience issues after installing the new filter, consider the following:
- Reduced Suction:
- Ensure the filter is installed correctly and seated firmly in its compartment.
- Check if the filter is clogged. If it's a new filter, ensure no packaging material is obstructing airflow.
- Inspect other parts of the vacuum (e.g., dustbin, hoses, brush roll) for blockages.
- Unusual Noises:
- Verify the filter is properly secured. A loose filter can cause rattling.
- Filter Does Not Fit:
- Double-check the compatibility section and your vacuum cleaner's model number to ensure you have the correct replacement filter.
7. Safety Information
Always observe the following safety precautions:
- Always turn off and unplug the vacuum cleaner before performing any maintenance or filter replacement.
- Keep replacement filters out of reach of children.
- Do not attempt to modify the filter or use it for purposes other than its intended use.
- Dispose of used filters according to local waste disposal regulations.
8. Warranty and Support
For any questions regarding the GRASKY HEPA filter or for support, please contact your retailer or the manufacturer directly. Specific warranty information may vary by region and retailer. Please retain your proof of purchase for warranty claims.