1. Product Overview
The Hoover H-Trifilter U98 is an original replacement filter designed for Hoover H-Purifier 500 and H-Purifier 700 air purifiers. This filter features a triple-layer protection system to ensure optimal air purification performance.
- Active Carbon Layer: Effectively removes harmful gases and odors from the air, contributing to a fresher indoor environment.
- Triple-Layer Filtration: Guarantees the elimination of up to 99.97% of particles as small as 0.3 micrometers, including pollen, dust, and allergens.
- Cylindrical Design: The unique cylindrical shape of the H-Trifilter allows for a more efficient airflow compared to traditional flat filters, enhancing the purifier's overall performance.
- Compatibility: Specifically designed for use with Hoover H-Purifier 500 and H-Purifier 700 models.

Image 1.1: Front view of the Hoover H-Trifilter U98 packaging, showing the filter design and key features.
2. Safety Information
Please read and understand the following safety precautions before handling or installing the filter:
- Always unplug the air purifier from the power outlet before attempting to replace the filter.
- Do not wash or attempt to clean the H-Trifilter. It is designed for single-use and should be replaced when exhausted.
- Keep new and used filters out of reach of children and pets.
- Dispose of used filters according to local regulations for household waste.
- Handle the filter by its frame to avoid touching the filter media directly.
3. Package Contents
Your Hoover H-Trifilter U98 package should contain:
- 1 x Hoover H-Trifilter U98 replacement filter
4. Setup and Installation
Follow these steps to replace the H-Trifilter in your Hoover H-Purifier 500 or 700:
- Power Off and Unplug: Ensure your Hoover H-Purifier is turned off and completely unplugged from the electrical outlet before proceeding.
- Access Filter Compartment: Refer to your H-Purifier's main instruction manual to locate and open the filter compartment. This usually involves removing a cover or panel.
- Remove Old Filter: Carefully remove the used H-Trifilter from the purifier. It may be dusty, so handle it over a waste bin.
- Unpack New Filter: Remove the new Hoover H-Trifilter U98 from its protective packaging.
- Insert New Filter: Place the new filter into the compartment, ensuring it is seated correctly and securely. The cylindrical shape is designed for a specific fit.
- Close Compartment: Close the filter compartment cover or panel, ensuring it is properly latched or secured according to your purifier's design.
- Restore Power: Plug the air purifier back into the electrical outlet and turn it on.
- Reset Filter Indicator: If your H-Purifier has a filter replacement indicator, follow the instructions in your purifier's main manual to reset it. This typically involves pressing and holding a specific button for a few seconds.

Image 4.1: The cylindrical Hoover H-Trifilter U98, ready for installation.
5. Operating the Filter (with H-Purifier)
The H-Trifilter U98 operates passively within your Hoover H-Purifier 500 or 700. Once installed, the air purifier draws air through the filter, where the triple-layer system captures particles, absorbs odors, and neutralizes harmful gases. No direct operation of the filter itself is required; its function is integrated into the air purifier's operation.
6. Maintenance
The Hoover H-Trifilter U98 is a consumable component and requires regular replacement to maintain optimal air purification performance.
- Replacement Frequency: The filter typically needs to be replaced every 6 to 12 months, depending on usage and air quality conditions. Your Hoover H-Purifier will usually indicate when a filter change is due via a light or display message.
- Disposal: Dispose of the used filter as regular household waste. Do not attempt to clean or reuse it.

Image 6.1: Hoover accessories, illustrating the range of replacement parts available, including filters.
7. Troubleshooting
If you encounter issues after replacing your H-Trifilter, consider the following:
- Purifier Not Turning On: Ensure the air purifier is correctly plugged into a working power outlet and that the filter compartment is securely closed. Some purifiers have a safety switch that prevents operation if the compartment is open.
- Filter Indicator Light Remains On: After replacing the filter, you must manually reset the filter indicator on your Hoover H-Purifier. Refer to your purifier's main instruction manual for specific steps on how to perform this reset.
- Reduced Air Quality: If air quality does not seem to improve after filter replacement, ensure the new filter is correctly installed and that it is an authentic Hoover H-Trifilter U98. If the issue persists, consult your H-Purifier's main manual or contact Hoover customer support.
8. Specifications
| Brand | Hoover |
| Model Number | 35602348 |
| Product Dimensions (L x W x H) | 9.1 x 3.6 x 3.6 cm |
| Item Weight | 1.27 kilograms |
| Material | Filter media |
| Compatible Devices | Hoover H-Purifier 500, Hoover H-Purifier 700 |
| Special Features | Triple-layer filtration, Active carbon, Cylindrical design |
9. Warranty and Support
As the H-Trifilter U98 is a consumable replacement part, specific warranty information for the filter itself may be limited. Warranty coverage for the air purifier typically does not extend to consumable filters.
For detailed warranty information regarding your Hoover H-Purifier 500 or 700, please refer to the documentation provided with your original appliance or visit the official Hoover website. For further assistance or to purchase genuine replacement filters, please contact Hoover customer support or an authorized retailer.





