US Patent 9295535 Device for generating gaseous species

The present invention provides a device for generating a non-thermal gas species which may be a flow of gas plasma in the form of a gas plasma plume emitted from the device. The device comprises a gas capsule, or pressure vessel for holding a gas or gases under pressure and forming a flow of gas through a reaction generator to an applicator when released from the capsule. Gas released from the gas capsule is energised in the reaction generator to form the gas plasma. The device is designed to be hand held and hand operated so that it may be used for cleaning and whitening teeth as well as other applications.