like i don't want to get into the science of this bottle vs a traditional 'hooter' ie bottle with bottom opened/removed
but pulling in with this bottle creates extreme pressure at the intake which pulls all of the weed in without waste, and once inside, it disperses along the frozen glass, evening out, before coming out of the top with no threat of rogue wafts of potent vapor/smoke that can seriously hurt like with traditional methods/hooters
more clearly, the hole at the top of the bottle is considerably larger than the intake hole at the bottom, which forces a slow pull, creating an evening out effect of anything that comes in the intake before coming out of the top
traditional hooters are opposite, with either the same size or larger hole at the bottom, making the smoking/vaping experience often times painful and uneven as the most concentrated wafts of smoke can make direct impact with the soft tissues