Saskatchewan's Green Directory Helping Saskatchewan choose a better environment

This category covers a wide range of products--custom fans, filters, passive ventilation systems, humidistat controls for fans, etc.

Good ventilation characteristics are important to maintaining a healthy building. Excessive ventilation results in unnecessary heat losses and higher greenhouse gas emissions; inadequate or poorly balanced ventilation can result in poor air quality and a higher risk of condensation and mould growth.

Air filtration is important to reduce dust levels, which can prompt allergic reactions.

Passive ventilation systems make use of stack effect (internal convection currents) and wind pressure effects to eliminate the need for an electric fan. (Applications for these are limited in Saskatchewan: you should seek the professional advice of a building services engineer or building physicist before considering a purchase.)

Humidistat controls may be used with kitchen and bathroom fans, to facilitate ventilation only at times of high moisture generation and thereby avoid waste at other times.