An ozone generator which comprises a housing having a hollow tubular memberwithin, the tubular member being slightly spaced from an inner face of thehousing to define atreatment space, the treatment space being occupied by a wire mesh which is incontinuouscontact with both the tubular member and the housing. A gas inlet is providedat a first end ofthe tubular member and a gas outlet also at the first end, a gas channelextending between thehollow tubular member and the treatment space, and a spark generating memberproximate thesecond end of the tubular member.
