First line of defense for controlling chimney fires Works safely with no water damage Fast, toss-in convenience Performance Characteristics (Test results from Omni Environmental Services): é½ Suppresses a chimney fire in an average of 22 seconds é½ Reduces flue temperatures an average of 53% in 2 minutes é½ Reduces the oxygen level an average of 43% in 2 minutes Recommended Uses: Use in wood stoves, fireplaces or fireplace inserts.