Try red or yellow first
I don't know if it's just this unit in particular or if all blue colored Smoke Buddys are this way, but this one had a mild problem with not all my smoke going into the filter. Usually this happens once the unit starts to clog, but this one had the problem from the get go, despite there being no resistance to me exhaling as there would be in a more used unit. Either way, this is the 4th Smoke Buddy I've owned (yellow, green, red, and now blue) and the first 3 were 5 star rated, this one is 4. This is still hands down the best way to smoke discretely.
Rating: 4 stars