Blimps & Inflatables Cold air inflatable Blimps Made to your personalized specifications in any shape or size. Stays inflated via an internal electric fan. Just plug it in and let it do the rest. Minimum noise minimum fuss. Gain massive product awareness with our 5.5m and 7.5m blimps. Helium filled - stays afloat for 2 weeks. Perfect for outdoor advertising . Examples of Cold Air Inflatables