How to Clean Up Fire Extinguisher Residue
If you have recently utilized a fire extinguisher to extinguish a small fire in your California business, you may be relieved that the incident is behind you. However, prior to resuming normal operations, it is imperative to clean the residue left by the fire extinguisher. The appropriate cleaning methods will vary depending on the type of extinguisher employed. Please refer to the following guidelines to effectively restore your premises to their customary condition.
Clean Up Dry Chemical Fire Extinguisher Residue
Dry chemical fire extinguishers utilize agents such as monoammonium phosphate, sodium bicarbonate, and potassium bicarbonate to effectively extinguish fires. However, these agents leave behind a corrosive residue, making it imperative to clean up the remnants promptly, especially when they have come into contact with metal surfaces. The following procedures should be followed to ensure the effective removal of dry chemical fire extinguisher residue:
Removal of Loose Debris: Begin by vacuuming or sweeping up any loose material present in the affected area.
Cleaning Stuck-On Residue: For residue that adheres stubbornly, it is advisable to apply a solution of isopropyl alcohol diluted to 50 percent with warm water. Allow this solution to penetrate for several minutes before wiping the area with a damp cloth.
Neutralization of Sodium and Potassium Bicarbonate Residue: To neutralize any residue from sodium bicarbonate and potassium bicarbonate, a solution comprising 98 percent hot water and 2 percent vinegar may be applied. After allowing this solution to sit for several minutes, the area should be wiped with a damp cloth.
Neutralization of Monoammonium Phosphate Residue: In the case of monoammonium phosphate residue, a paste made from baking soda and hot water should be applied. Allow this paste to sit for several minutes, followed by wiping the area with a damp cloth.
Final Cleaning: Conclude the cleaning process by washing the affected area with soap and water, followed by a thorough rinse. Utilizing fans can facilitate the drying process.
Cleaning of Contaminated Items: If dishes, cookware, or clothing have come into contact with dry chemical fire extinguisher residue, it is recommended to wash these items as per normal procedures in a dishwasher or washing machine. Adhering to these guidelines will aid in the effective removal of fire extinguishing agents, thereby minimizing potential damage and corrosion to surfaces and belongings.
Clean Up Class K Wet Chemical Fire Extinguisher Residue
Because dry chemicals are corrosive, Class K wet chemical extinguishers are recommended for commercial kitchens. When cooking oil and grease catch fire, a potassium acetate-based, low-pH Class K extinguisher discharges a fine mist to cool cooking surfaces and extinguish the flames. Before you start cooking again, you need to clean up the residue.
To prep the area, shut off power to all cooking equipment and put on rubber gloves.
Wipe away residue with a sponge or cloth dipped in hot, soapy water.
Rinse all surfaces that came in contact with wet chemicals and allow everything to dry completely before turning the power back on.
Clean Up Halotron Fire Extinguisher Residue
Some older fire extinguishers use Halon as the primary extinguishing agent. While these are no longer in production, you may still have a Halotron fire extinguisher that you recently used to douse a blaze. While Halon leaves behind no visible residue, it’s still important to clean areas that came in contact with this extinguishing agent to remove smoky smells from the fire and neutralize the surface.
Apply diluted degreaser to the affected area. Use a sponge for small spots or a spray bottle for larger surface areas.
Apply a neutral cleaner to remove any remaining residue.
Wipe away all cleaning products and allow the surface to dry.
No Cleanup Needed for Clean Agent Fire Extinguishers
Clean agent extinguishers are non-conductive and non-ozone depleting, making them ideal for putting out fires near computers and electronics that could be damaged by water or corrosive dry chemicals. Clean agent extinguishers are effective against Class A, B, and C fires.
Because clean agents dissipate harmlessly into the atmosphere, they leave no residue behind and require no cleanup.
