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