In addition, electronic air cleaners generate ozone, which may be good in the stratosphere, but is unhealthy in homes. Now there is a third choice. Nutech Energy Systems has developed the Turbulent Flow Precipitator that promises highly effective filtration, low airflow resistance, very little maintenance and zero ozone. The TFP is based on the idea that air flowing near the wall of a duct is turbulent. This turbulence flings suspended particles against the duct walls.
Particles bounce off the hard surfaces and are picked up again by the swirling air.
In a TFP, the walls trap the particles. The TFP contains an internal fan that forces air through a labyrinth. The walls of the labyrinth are pleated fabric that hold particles thrown out by the air stream. The unit can operate for years without changing the pleated fabric. The TFP attaches to the duct system of a heat recovery ventilator or a forced heating system.