Using this nylon prefilter is easy. First, make sure you have your carb intake air filter ready. Then, simply place the prefilter over the top of the air filter. It's important to note that the air filter itself is sold separately. For maintenance, check the prefilter regularly for dirt and debris. If it gets too dirty, you can gently wash it with mild soap and water. Let it dry completely before putting it back on the air filter. This will help ensure the prefilter continues to work effectively and keep your engine running smoothly.