Lookah platinum glass recycler bong has an awesome function. It starts from the downstream with its large collecting chamber and leads into the lower jellyfish percolator. This ensures a smooth filtration and as the smoke rises it gathers and gets pulled towards the mouthpiece. Then as gravity takes hold the water is deposited back into the lower chamber. This circular flow of water and smoke ensures fluffy clouds of smoke that are cooled and filtered from any particulate matter. It also looks amazing which is what you would expect from any platinum glass from Lookah.