This nylon prefilter is a great addition to your carb intake air filter. To use it, simply place it over the top of your existing air filter. Make sure it fits snugly to get the best performance. When it comes to maintenance, check it regularly for dirt and debris. If it looks dirty, you can gently wash it with mild soap and water. Let it dry completely before putting it back on. Also, remember that the air filter it goes on is sold separately, so you'll need to have that ready. Keep it in a dry place when not in use to prolong its lifespan.