The solution must come in direct contact with the source of the odor in order to eliminate it. Odormute will not harm people, pets or plant life. Mix at a ratio of 1 tablespoon Odormute powder to 3,78 litre of warm water. Mix Odormute with warm water until completely dissolved. For best results, dissolve Odormute in a 0,5 litre of warm water. Allow 5 - 10 minutes, mixing occasionally, to make sure all powder is dissolved. Then, add this solution to the rest of the water. Enzymes are activated by adding warm water. Once activated, enzymes must be used within 4 hours for best results. Water temperature must be between 45° F to 140° F, with the optimum temperature between 70° F and 90° F. Freezing will not harm enzymes, however, temperatures above 140° F will destroy them.