this review in no way does justice to the book. let’s be a good community by setting the record straight. i really like this mask as you can leave it on for just 5 minutes and it is still effective so if you are busy but need a mask treatment this is perfect. at 60 inches it is long enough to shoot well and yet short enough to maneuver through the woods. unfortunately, this was not actually the case, as the hot tube heater was broken. 