PURETHYL is a granular product composed of high efficiency activated alumina impregnated with potassium permanganate, used for storing fruit and vegetable products, particularly for Kiwi storages. PURETHYL oxidises ethylene, sulphur dioxide and hydrocarbons removing them from the air. PURETHYL has a high capacity to remove ethylene and a long product efficacy. This is achieved by the excellent microporosity of the granules, combined with with a high concentration of the chemical oxidising agent. Due this high concentration of active reagent and to its low specific weight, PURETHYL is considered as one of the best products on the market and it is well recognized for its particularly long lasting depurative efficacy.