1. Product Overview
The Eureka ST0106 inlet air filter is a genuine replacement part designed specifically for the Eureka NES100 series 3-in-1 stick vacuum cleaners. This filter plays a crucial role in maintaining the vacuum's suction power and ensuring efficient cleaning by trapping dust and debris. Regular replacement or cleaning of this filter is essential for optimal performance and to prolong the life of your vacuum cleaner.
Key Features:
- Genuine Eureka inlet air filter, ensuring compatibility and performance for NES100 models.
- Designed to maintain high machine performance and keep your home clean.
- Easy to install, facilitating quick filter changes.
- Regular replacement helps prevent loss of suction.
2. Installation Instructions
Follow these steps to properly install the Eureka ST0106 filter into your Eureka NES100 stick vacuum cleaner.
- Power Off and Unplug: Before beginning, ensure your vacuum cleaner is turned off and unplugged from the power outlet to prevent accidental activation.
- Locate Filter Compartment: Identify the filter compartment on your Eureka NES100 vacuum. This is typically located within the dust cup assembly. Refer to your vacuum's specific user manual if you are unsure of its location.
- Remove Dust Cup: Detach the dust cup from the main body of the vacuum cleaner.
- Remove Old Filter: Carefully remove the existing filter from its housing within the dust cup. Dispose of the old filter responsibly.
- Insert New Filter: Place the new Eureka ST0106 filter into the filter housing. Ensure it is seated correctly and securely, with no gaps around the edges. The filter is designed for easy installation.
- Reattach Dust Cup: Reattach the dust cup assembly to the vacuum cleaner, ensuring it clicks firmly into place.
- Test Vacuum: Plug in and turn on your vacuum cleaner to confirm proper operation and suction.

Image: The Eureka ST0106 vacuum filter. This image shows the filter's design, which is compatible with Eureka NES100 series stick vacuum cleaners.
3. Maintenance
Regular maintenance of your Eureka ST0106 filter is crucial for maintaining optimal vacuum performance and air quality.
Cleaning the Filter
- It is recommended to clean the filter after every few uses, or when you notice a decrease in suction power.
- Remove the filter as described in the installation steps.
- Gently tap the filter over a trash can to dislodge loose dirt and debris.
- For a more thorough cleaning, rinse the filter under cool, running water until the water runs clear. Do not use hot water or detergents.
- Allow the filter to air dry completely for at least 24 hours before reinserting it into the vacuum. Do not use a dryer or other heating elements, as this can damage the filter material.
- Ensure the filter is completely dry before use to prevent damage to the vacuum motor.
Filter Replacement
- Even with regular cleaning, filters wear out over time and lose their effectiveness.
- It is generally recommended to replace the Eureka ST0106 filter every 3 to 6 months, depending on usage frequency and household environment (e.g., presence of pets, high dust levels).
- Replace the filter immediately if you notice any tears, damage, or if cleaning no longer restores suction power.
4. Troubleshooting
If you experience issues with your vacuum's performance, particularly related to suction, the filter may be a contributing factor.
- Reduced Suction Power:
- Check if the filter is clogged with dirt and debris. Clean or replace the filter as per the maintenance instructions.
- Ensure the filter is installed correctly and securely within the dust cup.
- Verify that the dust cup is properly attached to the vacuum and not full.
- Unusual Odors:
- A dirty filter can sometimes cause odors. Clean or replace the filter.
- Ensure the filter is completely dry before reinstallation to prevent mold or mildew growth.
If troubleshooting steps related to the filter do not resolve the issue, consult your Eureka NES100 vacuum cleaner's main instruction manual for further assistance or contact Eureka customer support.
5. Specifications
| Model Number | ST0106 |
| Compatible Devices | Eureka NES100, NEN110B, NEN110A, NEN110D |
| Material | Foam |
| Product Dimensions | 2.36"L x 2.1"W x 0.31"H (6.35 H x 0.177 L x 6.35 W cm) |
| Item Weight | 0.81 ounces |
| Reusability | Reusable (with proper cleaning) |
| Manufacturer | Eureka |
6. Warranty and Support
This Eureka ST0106 vacuum filter is a consumable accessory. According to the product information, there is no specific warranty provided for this item.
For further assistance or inquiries regarding your Eureka vacuum cleaner or its accessories, please refer to the official Eureka website or contact their customer support directly.







