We didnt invent anything new but made it very easy to install and use:
FANZ comes in single or double fan, powered by a 9V battery with on/off switch in a case. Installed in less than 5mn, easily removable, it prevents fogging by either pushing air down or sucking it up (or both with the duo fan). We pick our fans to be very quiet and efficient.
Any mask with one inch clearance will work.
Price: $30 shipped to your door.
We have additional picture on Ez Creation by Ulrik Bédos & John Beckberger
Feel free to contact me for any question
We welcome group order and then can lower the price and combine shipping.