Piston compressor nebulizers/jet nebulizers deliver air from a piston-powered compressor through the liquid medication (normally through use of tubing and nebulizer cup) which creates the breathable mist.
Shopnebulizer.com offers a versatile line of piston compressor or jet nebulizers in your choice of designs, from a variety of manufacturers like Drive Medical, Salter Labs and many more, all under one roof.