We were given permission here at work for a short time. Then they hired someone who didnt know what it was and didnt understand it. She complained to HR and now we cant use them in the building anymore. She thinks the water vapor we are exhaling is going to give her "second-hand smoke cancer". Oh well, it was good while it lasted and we will be in our new office at the end of the month/beginning of next month and we have permission there. So all will be good.