Customer Asking About AirShare

I mean aireshare . Anybody every heard of it??

http://www.tjernlund.com/Tjernlund_A...it_8500730.pdf Customer wants me to bid on Mistubushi Hyperheats for his whole house but may want to use aireshares to keep the air controlled in a couple of small rooms. Anybody ever use them or know if they work??

Thanks