Heating, ventilation, and air conditioning (HVAC) systems and other equipment play a vital role in the normal operation of a facility. This is of particular importance where mechanical exhaust systems are used for the control of biological, chemical and radiological hazards in the workplace. Over the years potential airborne biological hazards such as simple particulates to more virulent micro-organisms such as TB can be lodged in the spaces of mechanical ducting or other equipment.

aht provides decontamination of HVAC and other equipment for standard operating procedures and prior to any maintenance or trouble shooting related work. Under the Occupational Health and Safety Act, managers and directors must provide a safe working environment for employees. aht can assist your organization with the identification and remediation of unknown hazards prior to your employees conducting their work. Some of our areas of expertise include:


HVAC Decontamination
  • Design and implementation of site specific biological, chemical and radiological management plans that meet the needs of individual corporations on a case by case basis.
  • On call 24 hour - 7 day a week emergency response team to address any suspected biological, chemical and radiological hazards that are discovered during routine operations.
  • Gas or spray foam decontamination of mechanical systems including fan units and duct systems.
  • Gas or spray foam decontamination of large and small equipment. Capable of constructing full containment barriers around equipment where required.
  • All decontamination projects can be validated with biological indicator strips to ensure that the necessary concentration reduction is achieved in accordance with applicable Ontario regulations for biological waste.