- Systems for the Produce Industry Presentation Products Produce Info Bioconservacion S.A. All Rights Reserved Air Hygiene Systems Effective removal of bacteria, spores & ethylene Granule Based on potassium permanganate and clays, our granule has the best absorption on the market Ethyclean Machines Designed for cold room storage. ETH machines purify the air from ethylene, funghi, bacteria, ...www.bioconservacion.com