Guardian Air QR+

The Guardian Air QR+ in-duct air purifier utilizes RGF’s proprietary PHI-CELL® technology. Installed into the supply plenum of your existing air conditioning or heating system air ducts, the Guardian Air QR+ in-duct air purifier produces low level, airborne hydrogen peroxide molecules that are distributed by the air handler, through the duct system and into the conditioned space. Unlike passive air technologies, which need pollutants to pass through the unit for purification or filtration, the Guardian Air QR+ in-duct air purifier sweeps through the air conditioned space actively purifying pollutants at the source.

Note: It is recommended these units be installed by a licensed electrician or HVAC professional.

Left right Aroow
Item # CFM’s Electrical Dimensions Ship Weight
QRP-5 300 – 1,200 CFM 0.47 Amps, 11 Watts 5” Probe / 5.5” Dia. Plate 3 lbs.
QRP-9 1,000 – 6,500 CFM 0.6 Amps, 14 Watts 9” Probe / 5.5” Dia. Plate 3 lbs.
QRP-14 10,000 – 18,000 CFM 0.7 Amps, 17 Watts 14” Probe / 5.5” Dia. Plate 4 lbs.
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Why Use RGF’s Photohydroionization® Technology?
Photohydroionization® (PHI) is an active air treatment technology. Active air treatment is the process of reducing air and surface contaminants by recreating safe, natural levels of hydrogen peroxide (H2O2) in occupied areas.

RGF's patented PHI-CELL® technology combines a photocatalytic process and a multiwavelength UV source to create active air purification. The combination of UV light and a hydrated quad-metallic catalyst drives a reaction that produces low level, airborne H2O2. RGF's PHI-CELL® air treatment systems are operating safely in over four million installations globally.

• Available in three sizes (5”, 9”, 14”) to accommodate blower sizes from 300-18,000 CFM
• Reduces bacteria, mold, viruses and odors throughout the air conditioned space
• Easily integrated with your existing HVAC system, the QR+ operates continuously and silently.
• Low maintenance: No costly filter changes, all you need is a PHI-Cell® replacement every 2 years and only takes 5 minutes.
• The Guardian QR+ has a quick-release feature for easy, no tool cell replacement.

• Single family homes, apartments, condos
• Hospitals, nursing homes, assisted living facilities, and doctor’s offices
• Schools, daycare centers, colleges and universities
• Fitness centers, locker rooms, athletic facilities
• Office buildings
• Veterinary clinics, animal hospitals, kennels,
• Hotels, motels, and resorts.
• Food processing and manufacturing plants/facilities
• Restaurants, diners, and bars

Left right Aroow
CFM’s 300 – 1,200 CFM 1,000 – 6,500 CFM 10,000 – 18,000 CFM
Dimensions 5” Probe / 5.5” Dia. Plate 9” Probe / 5.5” Dia. Plate 14” Probe / 5.5” Dia. Plate
Electrical 0.47 Amps, 11 Watts 0.6 Amps, 14 Watts 0.7 Amps, 17 Watts
Ship Wt. 3 lbs. 3 lbs. 4 lbs.
Technology PHI-CELL®
Recommended Cell Replacement 18,000 – 25,000 hrs.
Replacement Cell Part # QRP-5   = PHIC-QR5 QRP-9   = PHIC-QR9 QRP-14 = PHIC-QR14
Volts 24 VAC
Tonnage 3 to 20 tons
CFM’s 300 – 18,000 CFM
Installation In-Duct
Material Aluminum / polymers
Warranty 5 years ballast / 2 years cell (U.S. only)
Hydro-Peroxides <.02 PPM

Certifications & Awards

UL 1598:2008 (3rd Edition)
CAN/CSA C22.2 No. 250.0:2008
EN 60335-2-65/A1:2008