Pure Air Systems 1200 Odor Absorption Whole House Air Filtration System


  • Uses all activated carbon or other absorptive medias in-lieu of the HEPA filter.
  • For use in eliminating a wide variety of gases and odors.
  • Variable Speed Motor
  • Up to 1200 CFM Air Flow
  • Available in Horizontal & Vertical Configurations
  • Run in Conjunction with HVAC System OR Standalone
  • Filter Section Can Be Rotated for Filter Access
  • Choose from HVAC Controller or VCU Controller
  • Can be purchased as a HEPA filtration system.

About Odor Absorption (Carbon) Systems

The 1200 Series OA or Odor Absorption units incorporate all carbon or other absorptive medias ( alumina, potassium permanganate, zeolite and specially treated carbons) in-lieu of a HEPA filter. The “L” version will accommodate up to 60 lbs of carbon with one pre-filter and the “S” version will accommodate up to 75 lbs of carbon with one pre-filter.

The 1200 Series (1200 CFM) unit is ideal for residential applications where a larger (3 ton and up) HVAC unit is installed. Along with attaching the 1200 unit to the HVAC system the power of the 1200 allows it to be used as a stand-alone filtration system and move carbon filtered air through a large portion of a home or residential structure. The 1200 Odor Absorption unit comes in a number of configurations to accommodate any residential application requirement.

Absorption of a Wide Variety of Gases and Odors

For many applications the reduction and or removal of a specific gas or odor is the primary issue. The ability to combine the all carbon units with the variable speed ECM motors allows for finite air flow control ( CFM ) of the specific gas through the carbon to obtain best adsorption rate and maximize single pass removal efficiency.

In the past three decades Pure Air Systems have been used to remove gases from Acetone to Toluene and everything in between. They have also removed organic and inorganic solvents and all types of odors from a wide variety of sources.

Variable Speed Motor

The 1200 Odor Absorption system represents one of the more powerful certified air filtration systems in our product line and is used in a wide variety of filtration applications around the world. The 1200 unit utilizes a ¾ HP GE (Genteq) ECM variable speed motor rated at 120/240 volt, 50/60 Hz and provides over 1200 CFM of filtered air with finite control of volume and speed while using up to 50% less electricity than standard induction motors. The 1200 units offer true 21st Century digital motor technology that is unavailable in any other system of its size.

Horizontal and Vertical Configurations

he 1200 unit was designed to be used in a wide range of applications and installation configurations. Either the “L” or “S” versions can be attached to any forced air ducted heating/cooling system in the partial by-pass configuration; in-line in HVAC applications for same air volume applications or stand-alone configurations. While the “L” version is most often used in partial by-pass configurations, the “S” unit can be used as well for situations where the “L” unit will not work. Either the “L” or “S” versions can be used for stand-alone applications.

Unlimited Installation Variations

Split housing design for the “L” unit and multiple operations for the “S” unit allows for unlimited installation variations. The 1200 “L” unit comes in two separate sections, the top half houses the three filters and the bottom half houses the blower/motor assembly and controller. The top and bottom are symmetrical so they can be rotated in any of four directions for best inlet or discharge configuration. This also allows for best access to the filter section via the filer access door. The “S” unit is a single piece unit that can be mounted horizontally right side up or upside down or in a vertical position.

Controllers for the 1200 Odor Absorption Series Units

HVAC Controller

The HVAC controller is most often used when the 1200 unit (either “L” or “S”) is attached to a heating/cooling system in the partial by-pass configuration. The HVAC controller allows the 1200 system fan unit to modulate (speed up and ramp down) in conjunction with the HVAC fan/motor operation.

VCU Controller

For applications where the 1200 unit is used either in-line with an HVAC system or as a stand-alone unit, the VCU controller is utilized. The VCU controller allows for air flow speed control from 1% of volume to 100% of volume in 1% increments.

HEPA Filter Option Available

Learn more about the 1200HS PLUS Whole House HEPA Air Filtration System.


  • Dimensions: 25” Deep x 25” High x 48” Long
  • Construction: 16 gauge powder coated steel
  • Connections: 14” Diameter Inlet and Discharge
  • Weight: 200 lbs (with filters)
  • CFM Rating: 1200 CFM ( With All Filters)
  • Electrical Requirements: 120 volt, 15 amp circuit
  • Motor: 3/4 HP ECM Variable Speed
  • 120/240 volt, 50/60 Hz
  • Energy Star Rated Motor
  • Filters: Polyester Ring Panel Prefilter
  • 15 lb Carbon Media (optional 2nd Carbon)
  • 99.99% Certified HEPA Filter
  • Controls: Lighted on/off switch, 15 Amp Breaker
  • Mini-Helic Filter Pressure Gauge
  • Controllers: HVAC Wiring Harness
  • VCU Digital Air Volume Controller
  • In Unit or Remote
Controller Type

1200 HVAC, 1200 VCU


Vertical (L), Horizontal (S)

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