Rooftop Liferafts offers a range of USCG approved or TC-approved IBA life rafts IBAs are comprised of double buoyancy chambers, a barrier floor and applicable government specified emergency equipment pack. Buoyancy chambers are constructed from specially formulated polyurethane (PU) proofed nylon fabric, which is highly resistant to abrasion and impervious to corrosion. IBAs are designed and certified for passengers starting from 4 person to 151 person capacities with container options of valise, low profile container or round container depending on model. Venturi inflation technology is available in some sizes of life raft, (A) allowing compressed air to enter the inflation chamber through small nozzles at high velocity, then (B) the air stream creates a vacuum that induces the air from outside enabling it to achieve unparalleled inflation speed, so that the amplified airflow (C) leaves the exit point, and this allows the product to use less CO2 cylinders, resulting in a smaller and a lighter weight product, and potential lower servicing costs due to less hydro and refill requirements.