If your approved safety helmet gets dirty or smelly, you can wipe it clean with a cloth and cool water, sprinkle baking soda or use a deodorizing spray specifically made for helmets.? Some people run their helmets through the dishwasher, which gets the outside sparkling clean but degrades the foam on the inside, reducing its effectiveness. Do not expose your helmet to hot water or high temperatures and avoid household cleaners or solvents, which can also eat away at the foam.
