EnviroClean develops, manufactures and supports quality gas- and smoke analyser for automotive repair shops and vehicle inspection companies. The analysers are produced and assembled in Sweden and shipped all over the world. The long history of EnviroClean starts in 1990 when Opus Prodox started making analysers. After name change to Opus Equipment, Preqas and later  Stenhøj Sweden The founders of Opus Prodox acquired Stenhøj Sweden and renamed the company to EnviroClean