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Festool 577791 SYS-AIR HEPA Air Filter

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Festool 577791 SYS-AIR HEPA Air Filter

SKU T577791

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Lightweight and easy to use

Lightweight and easy to use

Weighing just 22 lbs (10 kg), this air filter comes in a practical Systainer format with a convenient carrying handle.

Powerful performance

Powerful performance

With a powerful airflow of 400 cfm (680 m³/h), it effectively cleans the air in rooms up to 613 ft² (57 m²), achieving three complete air changes per hour.

Extra electrical outlet

Extra electrical outlet

The electrical outlet module provides convenient power options.

Adjustable airflow

Adjustable airflow

Fan speed can be adjusted to two levels: Eco mode for efficiency and maximum mode for high air circulation.

Focused air distribution

Focused air distribution

The filtered air flows upward in three directions—left, right, and back—reducing dust disturbance and minimizing disruptive air currents.

Two-stage filter system

Two-stage filter system

Most airborne dust is captured by the preliminary filter, protecting the main filter and allowing for quick, easy, and cost-effective replacement.

Large filter surface

Large filter surface

The main filter features a unique TripleV design with a large surface area, which helps reduce clogging and extends filter life.

Useful alerts

Useful alerts

A signal light indicates filter condition: green means the filter is functioning well, while red signals that the filter is contaminated and needs replaced.

Air supply hose available

Air supply hose available

For hard-to-reach areas or dust barrier walls, a large air supply hose with a 7-7/8" (200 mm) diameter and adapter plate is available as an accessory.

Compatible with other equipment

Compatible with other equipment

Thanks to T-LOC compatibility, it easily connects to all Festool Systainers and extractors. The air filter fits seamlessly into Systainer Systems vehicle racking systems.

Mobile base for easy movement

Mobile base for easy movement

The SYS-AIR can be easily transported on the SYS-RB cart or a Festool Dust Extractor.

Flexible placement options

Flexible placement options

Portable for use on the job site. Or placed conveniently in the workshop to save space. The air purifier can be mounted with the ceiling suspension accessory.

Lightweight and easy to use

Lightweight and easy to use

Weighing just 22 lbs (10 kg), this air filter comes in a practical Systainer format with a convenient carrying handle.

Powerful performance

Powerful performance

With a powerful airflow of 400 cfm (680 m³/h), it effectively cleans the air in rooms up to 613 ft² (57 m²), achieving three complete air changes per hour.

Extra electrical outlet

Extra electrical outlet

The electrical outlet module provides convenient power options.

Adjustable airflow

Adjustable airflow

Fan speed can be adjusted to two levels: Eco mode for efficiency and maximum mode for high air circulation.

Focused air distribution

Focused air distribution

The filtered air flows upward in three directions—left, right, and back—reducing dust disturbance and minimizing disruptive air currents.

Two-stage filter system

Two-stage filter system

Most airborne dust is captured by the preliminary filter, protecting the main filter and allowing for quick, easy, and cost-effective replacement.

Large filter surface

Large filter surface

The main filter features a unique TripleV design with a large surface area, which helps reduce clogging and extends filter life.

Useful alerts

Useful alerts

A signal light indicates filter condition: green means the filter is functioning well, while red signals that the filter is contaminated and needs replaced.

Air supply hose available

Air supply hose available

For hard-to-reach areas or dust barrier walls, a large air supply hose with a 7-7/8" (200 mm) diameter and adapter plate is available as an accessory.

Compatible with other equipment

Compatible with other equipment

Thanks to T-LOC compatibility, it easily connects to all Festool Systainers and extractors. The air filter fits seamlessly into Systainer Systems vehicle racking systems.

Mobile base for easy movement

Mobile base for easy movement

The SYS-AIR can be easily transported on the SYS-RB cart or a Festool Dust Extractor.

Flexible placement options

Flexible placement options

Portable for use on the job site. Or placed conveniently in the workshop to save space. The air purifier can be mounted with the ceiling suspension accessory.

Breathe easy with the SYS-AIR: the ultimate air filter for workshops and job sites.

The SYS-AIR air filter effectively captures airborne dust that professional extraction may miss, helping to prevent 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 that could contaminate the area and the air you breathe. This results in reduced cleaning efforts, improved cleanliness, and enhanced air quality.

Fine airborne dust that your dust extractor misses can settle on surfaces, equipment, and the surrounding area. The air filter helps to clean the air more completely, helping to improve air quality and reducing the need for frequent cleaning in your workspace. With better air quality, you create a more professional environment, leaving your customers satisfied.|The air filter comes in a convenient, compact Systainer³ format. Its lightweight design makes it perfect for both on-the-go and in-the-shop use. It is easy to operate, features two adjustable settings, and has a warning light to let you know when the filter needs changing. You also have flexible installation options; it can be securely mounted from the ceiling (with an accessory) or integrated into a dust protection wall at job sites. For larger spaces, you can run multiple units for greater coverage.|Even with optimal extraction, fine, invisible dust can linger in the air while sanding, drilling, or sawing, which may leave contaminants in the ambient air. With a powerful airflow of up to 400 cubic feet per minute (cfm) (680 m³/h), this air filter helps to ensure excellent circulation, effectively removing fine dust particles.

  • Compact and lightweight: Weighing in at 22 lbs (10 kg), this air filter comes in a convenient Systainer³ M437 format.
  • Powerful air filtering: With an impressive airflow of up to 400 cfm (680 m³/h), it effectively circulates air in rooms up to 613 ft2 (57 m²), achieving three full air changes per hour.
  • Adjustable airflow: Choose between two airflow levels based on dust levels in your environment.
  • Smart design: The airflow disperses upwards in three directions (left, right, and back), minimizing dust disturbance and creating fewer disruptive air currents.
  • Preliminary filter: Captures most dust particles to protect the main filter. It's easy to replace and cost-effective.
  • Efficient filtration: Features a specially designed TripleV main filter with a large surface area, reducing clogging and extending its lifespan.
  • Cleaner work environment: Provides over 99.9% filtration for cleaner air.
  • Signal light: Alerts you when filters are clogged or need replacing.
  • Connection port: Includes a port for connecting a 7-7/8" (200 mm) air supply hose (accessory) for hard-to-reach areas or dust protection barriers.
  • Compatibility: Connects easily to Systainers and extractors via T-LOC, and can be integrated into Systainer Systems vehicle racking systems.
  • Portable design: Easy to carry with the Systainer handle and simple to transport when paired with the SYS-RB cart or extractor.
  • Secure storage: The power cord is neatly stowed in the lid compartment, ensuring convenient and easy storage.

Main Applications

Ideal for jobs where extraction is tough or not an option|Perfect for demolition and renovation|Helps to enhance air quality in the workshop

Model Number: 577791

  • Preliminary Filter Vf-Sys-Air
  • Main Filter Hf-Sys-Air H/Hepa

Filter surface of main filter 3812 in2 (24600 cm²)

Filter surface of preliminary filter 1332 in2 (8600 cm²)

Max. volume flow 264.8 cfm (450.00 m³/h)

Dust class HEPA

Weight 21.82 lbs (10.20 kg)

Dimensions (L x W x H) 15.6" (396 mm) x 11.6" (296.00 mm) x 17.2" (437.00 mm)

Power consumption 200 watt

Noise level 55 - 65 dB

Drive type 120 VAC

Cable length 24.606 ft (7.50 m)

Filter surface of main filter 3812 in2 (24600 cm²)
Filter surface of preliminary filter 1332 in2 (8600 cm²)
Max. volume flow 264.8 cfm (450.00 m³/h)
Dust class HEPA
Weight 21.82 lbs (10.20 kg)
Power consumption 200 watt
Noise level 55 - 65 dB
Drive type 120 VAC
Cable length 24.606 ft (7.50 m)

Festool offers and all-inclusive warranty on all their tools.

3-Year Comprehensive Warranty Coverage - including wear and tear!
3-Year free shipping to and from Festool service department.
10-Year spare parts availability guarantees long-term support.
1-Month money back guarantee.



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