Which type of filter was developed in Canada for air cleaning?

The turbulent flow precipitator (TFP) is a type of air filtration system unique to Canada. It utilizes a design that promotes turbulent flow to enhance the separation of particulate matter from the air passing through it. This design allows for more effective capture of dust, pollen, and other contaminants, leading to improved air quality.

The TFP's operational principle relies on creating turbulence that increases the contact surface area of the filter media with the particles, effectively trapping them as air flows through. This method of filtration is efficient for both residential and commercial air cleaning applications, especially in environments where high levels of particulate matter are present.

Other types of filters, such as HEPA filters and electrostatic precipitators, exist and are widely used, but they come from different technological backgrounds and are not specifically tied to Canadian development in the way the TFP is. Thus, the unique contribution of the turbulent flow precipitator highlights its significance in the field of air cleaning technologies originating in Canada.