Kitchen Hood Inspections Schedule It Kitchen Hood Inspections Schedule It Every six months your kitchen hood fire protection system is required to be inspected to conduct business. Every six months your kitchen hood fire protection system is required to be inspected to conduct business. The purpose of the kitchen hood fire suppression system, is to help fight fires for your safety. The wet chemical fire fighting agent is normally an aqueous solution of organic or inorganic salts. The wet chemical fire fighting agent is normally an aqueous solution of organic or inorganic salts. Don't forget to contact us with any questions. Contact Us Check out our Frequently Ask Questions about kitchen hoods. FAQ K class fire extinguishers are only designed to be in a kitchen. It's your first line defense before the fire suppression system activates. In event of a fire, insurance companies can delay payment showing you were not up to state and federal codes of cooking operations. In event of a fire, insurance companies can delay payment showing you were not up to state and federal codes of cooking operations.