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Custom size design outdoor advertising inflatable air dancer air tube with blower for sale An inflatable is an object that can be inflated with a gas, usually with air, but hydrogen, helium and nitrogen are also used.One of several advantages of an inflatable is that it can be stored in a small space when not inflated, since inflatable depend on the presence of a gas to maintain their size and shape. Function fulfillment per mass used compared with non-inflatable strategies is a key advantage. Stadium cushions, impact guards, vehicle wheel inner tubes, emergency air bags, and inflatable space structures employ the inflatable principle. Inflation occurs through several strategies: pumps, ram-air, billowing, and suction.