1. Product Overview
This manual provides essential information for the installation, maintenance, and optimal use of your Leadaybetter Fine Dust Filter set, designed for Miele TriFlex HX1 series cordless stick vacuums. These filters are crucial for maintaining the vacuum's performance and ensuring effective air filtration.
Compatibility
- Miele TriFlex HX1
- Miele TriFlex HX1 Pro
- Miele TriFlex HX1 Cat&Dog Stick Vacuum

Figure 1: Filter compatibility with Miele TriFlex HX1 and HX1 Pro vacuum cleaners.
2. Package Contents
Verify that all items listed below are included in your package:
- 3 x HEPA Filter Replacements
- 3 x Motor Protection Filters (pre-assembled with HEPA filters)
- 1 x Cleaning Brush

Figure 2: Contents of the filter replacement package.
3. Installation Instructions
Follow these steps to replace the fine dust filter in your Miele TriFlex HX1 vacuum cleaner:
- Remove the old filter: Locate the filter assembly on your vacuum. Gently pull up the end of the filter marked with the word "pull" to release it.
- Disassemble the motor protection filter: If replacing both parts, unlock the motor protection filter by turning it counterclockwise from the other end, then pull it up to separate it from the HEPA filter.
- Prepare the new filter: The new HEPA filter and motor protection filter are typically pre-assembled as one unit in the package. No additional assembly is required before installation.
- Install the new filter: Press the new filter assembly firmly into the dust container. Turn the filter clockwise until it locks securely into place.

Figure 3: Step-by-step guide for filter installation.
Video 1: Demonstration of filter replacement for Miele TriFlex HX1 vacuum cleaners. This video illustrates the process of removing the old filter and installing a new one.
4. Filter Functionality
The Leadaybetter Fine Dust Filters utilize high-efficiency filtering technology to capture everyday contaminants. The post-filter is designed to remove 99.97% of airborne particles as small as 0.3 microns, contributing to cleaner and fresher air in your home.

Figure 4: The pleated design of the fine dust filter for optimal particle capture.
5. Maintenance and Cleaning
To ensure optimal performance and extend the lifespan of your filters, regular cleaning is recommended:
- The HX1 FSF Fine Dust Filters are washable and reusable.
- Hand wash the filters in water.
- Allow the filters to air dry completely before reinstallation and reuse. Do not use heat to dry.
- For best performance, clean the filters every 1-2 months.

Figure 5: Components of the filter assembly for cleaning.
6. Troubleshooting
- Filter does not fit: Ensure you have the correct filter model (HX-FSF 11289902) for your specific Miele TriFlex HX1 series vacuum. Double-check that any protective plastic or packaging materials have been fully removed from the filter before attempting installation.
- Reduced vacuum suction: A clogged filter can reduce suction. Ensure the filter is clean and properly installed. If the issue persists after cleaning, consider replacing the filter.
7. Specifications
| Brand | Leadaybetter |
| Model Number | HX-FSF 11289902 |
| Material | Plastic |
| Product Dimensions (L x W x H) | 3.26" x 3.26" x 4.4" (8.3cm x 8.3cm x 11.2cm) |
| Reusability | Reusable (Washable) |
| Unit Count | 3 Count |

Figure 6: Filter dimensions.
8. Warranty Information
This product is covered by a 6-month warranty from the date of purchase. Please retain your proof of purchase for any warranty claims.
9. Customer Support
For further assistance, questions, or concerns regarding your Leadaybetter Fine Dust Filters, please contact the manufacturer directly through their official channels or the retailer from whom the product was purchased.