- Contains oxi action power - Cleans deep into the fibres - Removes the most difficult stains and smells HG stain and odour away for dogs has been enhanced with Oxi action power and that means it can remove even the most stubborn stains and smells caused by vomit, faeces, or urine effectively. The special active oxygen formula cleans deep into the fibres of the carpet or the upholstery, so even ingrained stains and smells will be removed easily. Hg stain and odour away for dogs is suitable for almost all types of fabrics.