
Annexair is a Canadian manufacturer established in 1998 focused exclusively on designing and manufacturing high-quality, semi-custom energy-efficient air handling systems intended for the commercial, institutional, and industrial markets. Annexair is a privately-owned company that invests significantly in R&D to offer the most advanced product in the market.
Basic formats available:
- HRV/ERV's for energy recovery (wheel or plate)
- MUA's for tempered supply air only
- AHU's when conventional air handling unit is required
Featured Products
Custom Air Handlers

BioComposite
- Bio-sourced reinforced engineered composite paneling
- Insulation made from thousands of recycled plastic bottles
- Lightweight construction, 40-60% lighter than steel units
- High deflection rating, L/1400
- R7 per inch insulation value, walls up to 4″ thick
- No corrosion, metal-free casing
- Zero thermal bridging
- Anti-microbial finish with rounded edges for wash down
- Lifetime corrosion warranty

ThermoComposite
- Aluminum casing with PVC trim
- Double-wall polymer core with foam insulation
- Lightweight construction, up to 40% lighter than steel units
- Manufactured with recycled content
- High deflection rating, L/1150
- 2-in thick with R-14 insulation
- PVDF 3000 hr salt-spray coating
- Thermal-break frame & panel assembly
- Superior acoustical properties versus steel casings
- Lifetime corrosion warranty
Why Annexair?
– High quality Canadian manufacturing near Montreal
– Unique casing options offer high longevity with lifetime warranty
– Lightweight construction reduces structural requirements
– EC Spider fans offer most efficient combination of EC motor and fan wheel
– Built-in DX cooling or heat pumps, air or water source with variable speed compressors & fans
– High quality coils for maximum heat transfer
– Standard thermal break construction
– Fully custom unit sizing & layouts available
– Every unit factory tested