Automotive dents can be eyesores, and having dents removed can be an expensive process. To make matters worse, many dent removal techniques can scratch your car's paint, and some even require holes to be drilled into the metal so that the dent can be pulled out. Relatively common household products may be able to remove the dents from your car, however. Though this technique may not work on large dents, combining the heat from a hair dryer with the cold compressed air from an air duster can cause a number of smaller dents to pull themselves out without having to so much as touch the metal.
Plug in the hair dryer and turn the temperature setting to "High."
Hold the hair dryer close to the dented portion of the car and turn it on. Do not touch the hair dryer to the metal of the car but keep it close enough that most of the hot air from the hair dryer is hitting the dent.
Keep the hair dryer focused on the dented metal for at least 30 seconds. The metal will start to heat up as the hot air continues to blow over it.
Turn off the hair dryer and set it aside. Pick up a can of compressed air and begin spraying the heated area right after turning off the hair dryer; the cold of the compressed air hitting the warm metal will cause it to begin to contract, pulling the dent out in the process.
Continue working the air duster over the warm metal, moving the stream of air around as the dent begins to be pulled out by the cold.
Use the hair dryer again if the metal cools completely before the dent has been removed, applying it for at least 30 seconds again to heat the metal up. Once it has been heated, switch back to the air duster.
