Fresh air all year round!

This machine moves polluted/smelly air from indoors to the outside of a home, clean air from the outdoors to the indoors, and, in the process, harvests almost all of the heat/cold from the outgoing air, and uses it to heat/cool the incoming air.

Thus, you get fresh air without paying to heat it up or cool it down, or overwhelming your heating/cooling system.


Make it yourself