Several modern ball or grenade-style extinguishers are on the market. They are manually operated by rolling or throwing into a fire. The modern version of the ball will self-destruct once in contact with flame, dispersing a cloud of ABC dry chemical powder over the fire which extinguishes the flame. The coverage area is about 5 m2 (54 sq ft). One benefit of this type is that it may be used for passive suppression. The ball can be placed in a fire prone area and will deploy automatically if a fire develops, being triggered by heat. Most modern extinguishers of this type are designed to make a loud noise upon deployment.
Fire Extinguishing Ball is a ball shaped fire extinguisher. Simply thrown into a fire, it will activate within 3 seconds and effectively disperse-extinguishing chemicals. When a fire occurs and no one is present, Fire Extinguishing Ball will self-activate when it comes into contact with fire and give a loud noise as a fire alarm. Because of this feature, it can be placed in may fire prone area such as above electrical circuit breaker or in a kitchen. There is no special training or skill required to operate the ball and no need to face the dangers of the fire. No inspection and maintenance are required for the product life span of 5 years.