In Plain Language

Asbestos can't be used in air distribution systems or equipment in any form or location where asbestos fibres could enter the supply or return air streams, protecting indoor air quality from this hazardous material.

This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.