What Is the Difference Between Aerosol and Non-Aerosol Hairspray?

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An aerosol hairspray creates a fine mist of liquid particles. It is packaged in a pressurized container, and a release valve is used to emit the suspension into the air as a mist. A non-aerosol or pump hairspray also creates a mist, spray or stream of liquid. It is packaged as a liquid, usually in a bottle with an atomizer attachment, such as a pump sprayer.