@cakyol....but, does it get you high as well? Obviously, it Has to be 'rarified' to be worth it....
While you're at it, make sure the mark, I mean, client understands the need for the special 'room sealant' to contain the RareAire...as well as the new windows, doors, air exchange/filters, compressors, vacuums, power system.....all ISO'd, UL'd, and anything else you can come up with...;)
Go gittum, tiger...