Air hoses (also known as pneumatic hoses or air compressor hoses) carry compressed air to air-powered (pneumatic) tools, nozzles, and equipment. Some types of air hoses may also be used to convey other substances, such as water and mild chemicals. Bulk air hoses can be cut to the desired length and compatible hose fittings can be added to the ends of the hoses to create custom hose assemblies. Air hose assemblies come with fittings installed on the ends of the hose and are ready to be connected to equipment.