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ACD pureAir HVAC

Commercial In-Duct Active Air Purification System

Support occupant health and well-being with proven air purification solutions from US LED. Our active air purification products recreate the same processes in nature, safely destroying harmful viruses, bacteria, mold, odors, and other pathogens. Unlike passive filters that affect only air that passes through them, this air purification system projects purifying solutions to the sources of pollution, continuously reducing odors and airborne particles.

Utilizing a proprietary form of photocatalytic oxidation called Active Radiant Catalysis (ARC®), the in-duct solution uses energy to activate a catalyst that turns moisture into effective advanced oxidation products (AOPs). These AOPs continuously sanitize the air and surfaces, actively destroying microbes and rendering contaminants harmless. After creating a plasma of positive and negative charges, ionization removes allergens and other harmful pathogens from the breathing space, either by pushing them away or causing them to clump together and fall to the floor.

Product Details

Key Features

  • Easy to install commercial in-duct solution that actively purifies the air in the environment.

  • Distributes air purification evenly throughout the environment using existing ductwork, while keeping the system fresh.

  • Active air purification operates 24/7 and recreates natural processes to reduce odors caused by bacteria, mold, and more.

  • Units can be customized for each application and purification needs.


  • Active Radiant Catalysis (ARC®), the proprietary Photocatalytic Oxidation (PCO) technology, uses energy to activate a catalyst, turning moisture into products that continuously clean the space.

  • Bipolar Ionization Module attaches to the ARC® Cell; creates a plasma of electrical charges, and the ionization removes allergens and other pathogens.


  • Supply Power: 100-240VAC 1

  • Operating Power: 24VDC

  • ARC® Cell utilizes a proprietary germicidal UVC lamp to produce catalytic reaction.


  • Precision-molded plastic housing for 9” and 14” in-duct models.

  • Powder-coated housing for dual probe model.

  • LED function lights confirm operation.


  • Unit should be installed after the air handler in the HVAC system in the supply plenum. 2

  • An opening of 4” across will need to be cut into the existing duct to install correctly.

Product Applications

  • Commercial Offices

  • Commercial Retail

  • Entertainment

  • Extended Care

  • Schools/Universities

  • Healthcare Facilities

  • Hospitality

  • Public Venues


  • HVAC in-duct housing and power supply are backed by the manufacturer’s ten-year warranty.

  • ARC® Cell (including bulb) is backed by the manufacturer’s two-year warranty.


Are you ready to support occupant health and promote wellbeing? Let's start a conversation about active air purification.

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