FreshAIR is a heat recovery ventilation unit that uses the principle of refrigeration to heat or cool ventilation air using exhaust air as a heat sink or source. Since exhaust air temperatures are typically cooler than ambient air temperatures in the summer, the efficiency of FreshAIR can exceed that of a conventional air-cooled system. In winter months, FreshAIR can achieve a COP greater than 5, making it more cost efficient than heat derived from fossil fuels. Both exhaust and supply air streams remain completely isolated, making it an ideal system for recovering energy from contaminated exhaust air.

heat recovery ventilation uni

Built for Service

Other commercial or industrial units are built as throwaway units or are so hard to service that it is easier to just replace the unit. All AIR units are designed and built with the service technician in mind. We are able to do this by take the learning and difficulties that we see in the field and pass that information to our engineering team to enhance our units.

1. Cabinet doors removable for service, without tools.
2. Electrical box positioned for easy access.
3. Serviceable compressors for industrial reliability.
4. Replaceable filter drier with isolation service valves.

heat recovery ventilation MUA

Heating Mode

1. Heat is extracted from the evaporator in the exhaust air

2. The compressor upgrades the heat and rejects it to the supply air through the condenser

Key Features

• Capacities from 2,000 – 50,000 CFM
• Active air-source heat recovery
• Integrated control PLC
• Semi hermetic reciprocating compressors
• Dual independent refrigerant circuits
• R-134a refrigerant
• Stainless steel drain pans
• Backward inclined heavy duty blowers
• Hinged/removable doors requiring no tools
• Aluminum frame construction
• Welded SS base frame with forklift holes
• MERV-5 through 20 pleated air filtration
• Elastomeric foam insulation

heat recovery ventilation uni

How it Works

Cooling Mode

1. The compressor extracts heat from the evaporator and cools the supply air

2. Heat is rejected to the exhaust air through the condenser


FreshAIR being rigged into a building for a retrofit project in Ontario, Canada.

The first FreshAIR makeup air unit being lifted and rigged into place in an apartment building downtown Toronto. For more information on how this revolutionary new makeup air unit works to save you money click here