ECOgent and ECOgent2 are the only cleaners presently meeting Canada's Environmental Choice Program certification criteria (PRC-097). They embody all the right principles - renewable, low toxicity, low volatility, and readily biodegradable under both aerobic and anaerobic conditions. Simplify your carpet cleaning program with the ECOgent Carpet Cleaning System. Key ingredients of these new cleaners are made from vegetable matter through fermentation processes. And they are so low in volatiles that they have been acclaimed even by chemically sensitive users.