Industrial Exhaust

Alliance Aircon specializes in industrial ventilation applications, the most impactful engineering control method for improving and maintaining the quality of the air in and around an industrial environment. Whether you need an air pollution control system to treat atmospheric discharge or require a definitive plan to improve indoor air quality, Alliance Aircon will assist you in your air quality control strategy.  Project size is never an issue; we’ve handled projects from 100 to 250,000 CFM.

When finalizing an industrial ventilation design approach,


Alliance Aircon can apply single or multiple technology options including:

  • Air Pollution Control where particulate, oil mist or gaseous pollutants are present
  • Industrial Fans & Blowers when mechanical ventilation is required to move the air
  • Noise Control when interior and/or exterior noise levels must be met
  • Industrial Vacuum Systems for housekeeping and preventing deposition and “clean-up” of combustible dusts
  • Industrial HVAC when heating or cooling is required
  • Industrial Air Systems when hoods, duct or area containment is necessary
  • Steel Building Ventilation Systems for large ventilation projects


Industrial ventilation controls the level of contaminants and ambient conditions in the form of dusts, toxic materials, extreme temperatures, humidity, odour, or explosive gases. When initiating a new system design, it’s important to consider two approaches for your industrial ventilation system, dilution ventilation or source capture (local exhaust). Dilution ventilation reduces the concentration of airborne contaminants by mixing contaminated air with clean or outside air. A building with wall supply fans and exhaust rooftop fans is a classic example.  Local exhaust ventilation captures airborne contaminants at or near the source, and exhausts them to a safe area.  The example, in this case, is a dust collection system with hoods, duct, dust collector, exhaust fan, and stack.

Depending on the processes, work environment, and facility layout, each approach offers differing advantages.

Dilution ventilation systems are typical where large quantities of internal heat, odours or gases are generated and need to be diluted or exhausted.  Applied examples can be found at:

  • Coal Fired Power Plant Building
  • LNG Compressor Stations
  • Utility Transfer Stations
  • Chemical processing Rooms
  • Warehouse Temperature de-stratification


Ventilation projects using source capture normally include a hood (s) or an enclosure and a duct system in addition to a fan and air pollution control device.  Typical systems might be defined by:

  • Acid Dip Tank Fume Exhaust System
  • Pharmaceutical Laboratory Exhaust with Flexible Extraction Arms
  • Weld Smoke Central Dust Collection System
  • Mixer/blender Capture and exhaust System
  • Laser Table Exhaust System
  • High School Woodshop Dust Collection


When implementing steps to alleviate ventilation issue, we integrate associated technologies. When you fix one issue, another hidden issue becomes more obvious and needs to be addressed. How do we do that?

  • Noise Control with exhaust fan silencers, noise blankets or room enclosures
  • Fire Protection Systems with spark arrestor
  • Vacuum Systems to clean up dust accumulation on floors and horizontal surfaces
  • Make-up Air to maintain a positive building pressure
  • HVLS Recirculation Fans to recovery heat or cool work areas