The Festool SYS-AIR HEPA air filter is designed to effectively capture airborne dust in workshops and job sites, preventing it from settling on surfaces. Its compact Systainer design and lightweight build make it ideal for mobile use. Featuring a powerful two-stage filter system, it aggressively cleans the air by removing even the tiniest dust particles, resulting in reduced cleaning efforts, improved cleanliness, and enhanced air quality.
Follow these steps for initial setup and unboxing of your Festool SYS-AIR HEPA.
Official unboxing and overview of the Festool SYS-AIR HEPA filter.

The Festool SYS-AIR HEPA unit shown with its included main and preliminary filters, ready for assembly.
Upon unboxing, ensure all components are present: the SYS-AIR HEPA unit, the main filter (HF-SYS-AIR H/HEPA), and the preliminary filter (VF-SYS-AIR). The unit is designed for easy portability and integration into existing Systainer systems.
The SYS-AIR HEPA is designed for efficient air filtration in various work environments. Here are its key operational features:

The SYS-AIR HEPA can be connected to an air supply hose (accessory) for targeted air purification in specific areas or behind dust protection barriers.
Regular maintenance ensures optimal performance and longevity of your SYS-AIR HEPA filter. The unit features a two-stage filtration system.
Refer to the included quick guide for detailed instructions on filter replacement procedures.
If you encounter issues with your Festool SYS-AIR HEPA, consider the following common solutions:
For persistent issues or complex problems, please contact Festool customer support or refer to the comprehensive troubleshooting section in the full product manual.
| Feature | Detail |
|---|---|
| Brand | Festool |
| Model Name | SYS-AIR HEPA US |
| Item Model Number | 577791 |
| Filter Type | HEPA Filter |
| Special Feature | Compact, HEPA, Lightweight, Portable |
| Airflow Capacity | 400 Cubic Feet (680 m³/h) |
| Product Dimensions | 15.6"L x 11.6"W x 17.2"H |
| Item Weight | 21.8 pounds |
| Included Components | Main Filter HF-SYS-AIR H/HEPA, Preliminary Filter VF-SYS-AIR, SYS-AIR HEPA US |
Festool offers comprehensive support for its products. For detailed warranty information, product registration, or technical assistance, please visit the official Festool website or contact their customer service.
You can find more information and contact details on the Festool Brand Store.
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