That's encouraging. More testing necessary here.My office is 10ftx10ft and I bought the one that covers 815sq ft. It clears all the odor out overnight. I run it on turbo when I'm smoking and then cut it back to medium when the odor sensor light goes blue. By the next morning the odor is gone. I have 3 kids and a wife who can't stand smoke, so far no complaints.
BTW, do you use any other kind of exhaust, like a fan in the window?
Enjoy your nice, comfortable, sheltered, family-friendly smokes!