The main purpose of a lift bag is to assist in raising an object from the bottom to the surface.......
The main purpose of a lift bag is to assist in raising an object from the bottom to the surface. Whether it is a lost propeller, ancient cannon or a treasure chest you will need a lifting device to bring it to the surface. There are two main types of lift bags - Closed Lift Bags have a pressurised container attached to it and also an over-pressure valve to release an excess of gas. Open Lift Bags are characterised by an open-end which will release the excess of gas while ascending to the surface. There are also lift bags that are used for multiple purposes like Deco Buoy/Lift Bag.Mike's Dive Store offers a selection of high-performance lift bags from top manufactures like AP Diving, Mares, Hollis, Aquatec.