A kind of spray is a type of product that is released in the form of a mist or vapor. HAIR spray is a type of spray used to style and hold HAIR in place. It is usually dispensed from an AEROSOL can, which is a container that uses compressed gas to propel the product out of the can. NASAL spray is another type of spray used to deliver medication to the nose. It is typically used to treat allergies, colds, and sinus infections.