What we do

Competent, Specialized and Flexible


The company is focused exclusively on designing and manufacturing high-quality, semi-custom energy-efficient air handling systems intended for the institutional, commercial and industrial markets. Each product is different and designed to meet the customer’s specifications.

Annexair Product Portfolio

ERU Units are designed for energy recovery

MAU Units are designed for projects that require 100% make-up-air

AHU Units are designed for projects where a conventional air handling unit is required.


Starting from a standard Energy Recovery Ventilator equipped only with a heat wheel and two fans, we have the ability to add any type of cooling or heating device and integrate the latest technologies of air-cooled condensers or water-source heat pump systems you may require.

Our capacity range varies from 2,000 CFM to 100,000 CFM and can be combined with a condensing unit that provides between 10 to 300 tons of cooling.



Our team of engineers is extremely competent in all fields of engineering, mechanical and electrical conception to controls and refrigeration, in three major categories using the following list of components:





For projects requiring one of these systems, Annexair can be your single source supplier. We are flexible with the integration of a wide variety of options and components, and deliver a final working product that requires almost no field work.
* Please take note that Annexair is currently developing a complete new line of standard products which will be added periodically on the website. Visit our home page regularly in "Product News" for new product lines added.