Introduction
This manual provides essential instructions for the proper installation, maintenance, and care of your Dyson Pre-Motor Washable Filter, Part 905401-01. Adhering to these guidelines will help ensure optimal performance and longevity of your Dyson vacuum cleaner.
Compatibility
This pre-motor washable filter is designed for use with the following Dyson vacuum cleaner models:
- Dyson DC05
- Dyson DC08
- Dyson DC14
- Dyson DC15
Note: This filter is not compatible with Dyson DC07 vacuum cleaners.
Installation (Setup)
Follow these steps to replace the pre-motor filter in your Dyson vacuum cleaner:
- Power Off and Unplug: Before beginning any maintenance, ensure your Dyson vacuum cleaner is turned off and unplugged from the power outlet to prevent accidental activation.
- Locate the Filter Compartment: The pre-motor filter is typically located near the cyclone assembly, often accessible by removing the clear bin. Refer to your specific vacuum model's user manual for the exact location.
- Remove the Old Filter: Carefully remove the existing pre-motor filter. It may be secured by a clip or simply seated in a compartment. Note its orientation for correct installation of the new filter.
- Insert the New Filter: Place the new Dyson Pre-Motor Washable Filter (Part 905401-01) into the compartment. Ensure it is seated firmly and correctly oriented.
- Reassemble: Reattach the clear bin and any other components removed during the process. Ensure all parts are securely fastened before operating the vacuum.

Maintenance (Cleaning)
To maintain optimal performance, regularly clean your washable pre-motor filter:
- Remove the Filter: Follow the initial steps in the Installation section to remove the filter from your vacuum cleaner.
- Wash the Filter: Rinse the filter under cold running water. Gently squeeze the filter to remove dirt and debris. Continue rinsing until the water runs clear. Do not use detergents or hot water.
- Dry Thoroughly: Shake off excess water and allow the filter to air dry completely for at least 24 hours before reinstallation. Do not place the filter in a tumble dryer, microwave, or near an open flame. Ensure it is absolutely dry to prevent damage to the vacuum motor.
- Reinstall: Once completely dry, reinstall the filter into your vacuum cleaner as described in the Installation section.
It is recommended to wash the pre-motor filter at least once every three months, or more frequently with heavy use.
Troubleshooting
- Reduced Suction: If your vacuum experiences reduced suction after filter replacement, ensure the filter is correctly seated and fully dry. A damp or improperly installed filter can restrict airflow.
- Unusual Odors: A musky or unpleasant smell from the vacuum often indicates a dirty or damp filter. Regular washing and ensuring the filter is completely dry before reinstallation can prevent this.
- Filter Does Not Fit: Double-check the compatibility list to ensure you have the correct filter for your Dyson model. This filter is specifically for DC05, DC08, DC14, and DC15 models.
Specifications
| Brand | Dyson (Replacement Part by Sparesaver) |
| Part Number | 905401-01 (Sparesaver Part# 10-2312-01) |
| Compatible Models | Dyson DC05, DC08, DC14, DC15 |
| Reusability | Reusable, Washable |
| Product Dimensions (L x W x H) | 6" x 6" x 1" (approximately) |
| Item Weight | 1.44 ounces (approximately) |
| Number of Pieces | 1 |
Safety Information
- Always unplug your vacuum cleaner from the power outlet before performing any maintenance or filter replacement.
- Ensure the filter is completely dry before reinserting it into the vacuum cleaner. Installing a damp filter can damage the motor and void your vacuum's warranty.
- Do not use harsh chemicals or abrasive materials to clean the filter. Only use cold water.
- Keep replacement filters out of reach of children.
Warranty and Support
For warranty information regarding this replacement filter, please refer to the documentation provided by the seller or manufacturer at the time of purchase. If you encounter any issues or require further assistance, please contact the seller directly for support.