BY HydraMaster

At 500 CFM & 2.4 AMPS  is the most compact, portable True HEPA air filtration device made. Its energy-efficient rotomold design is durable, lightweight and stackable, making it the ultimate in both portability and performance.


Out of stock

SKU: HM-100-500-003



The HydraMaster GuardianR HEPA Air Scrubber is the most compact, portable True HEPA air filtration device made. Its energy-efficient rotomold design is durable, lightweight and stackable, making it the ultimate in both portability and performance.

The Most Portable HEPA Air Scrubber on the Market
Powerful, Portable, Lightweight, True HEPA.

Whether set-up as an air scrubber or negative air machine, the HydraMaster GuardianR Pro HEPA Air Scrubber design has been independently tested to verify True HEPA performance of not just the filter but of the entire device while delivering over 500 CFM of filtered airflow. With variable speed control, the GuardianR Pro delivers just the right amount of desired airflow. The efficiency doesn’t end with the filter performance and airflow; the GuardianR Pro draws less than 2.5 amps of power. This makes the GuardianR Pro HEPA Air Scrubber perfect for a variety of remediation projects where space and power are at a premium. A single GuardianR will provide 4 air changes per hour (the recommended minimum) on 7500 cubic feet (more than a 30’ x 30’x 8’ room).

The GuardianR weighs in at a mere 33 lbs. and has a compact design with a 14-inch height and a small 22 x 24 footprint. Designed to operate horizontally or vertically, the large 16-inch diameter inlet maximizes the capture zone of airborne particles. The detachable outlet duct ring makes attaching lay flat duct quick and easy so you can deliver HEPA filtered air where you want it. The molded handle and stackable design makes the GuardianR easy to hand carry, transport and store.

The GuardianR Pro also has a built in GFCI outlet and 12 amp breaker to provide 10 amps of power conveniently for other devices while operating at high speed. A Change Filter Light automatically alerts the restoration professional when the filters should be checked and possibly replaced to maintain maximum CFM performance.

The GuardianR’s 2-stage filter design removes virtually all hazardous particles from the air and the optional carbon/potassium permanganate filter can be used to absorb a wide range of odors and gases.


• Up to 500 CFM airflow; 2.4 amps
• Compact design
• Variable speed flow
• Multiple ducting options
• Tough, rotomold cabinet
• Optional carbon/potassium permanganate blend filter
• On-board duplex GFCI and circuit breaker
• Large horizontal inlet maximizes capture zone
• 30% more filter media maximizes filter life
• True HEPA filtration with 2-stage filtration design


• Part No: 4031440
• Power: 2.4 amps; 110-120 Vac
• Blower: 500 CFM
• Filters:
– 1st stage 1″ Pleated Media, 18″ x 18″ (optional) 1″ Carbon and Potassium Permanganate
– 2nd stage 2.5″ Pleated HEPA 18″ x 18″
• GFCI: 15A UL Rated GFCI Duplex Receptacle
• Warranty: One Year, 100% Parts and Labor
• Dimensions: Machine 22″ x 14″ x 24″
• Weight: 33 lbs.

Additional information

Weight 33 lbs
Dimensions 24 × 24 × 24 in
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