Using your K&N Universal Air Filter is easy. First, find the right spot for it based on your equipment's air intake. The rubber flange allows for a secure and flexible fit. Just attach it firmly to the air intake. When it comes to maintenance, you can simply wash it when it gets dirty. Use a mild cleaner and warm water, then let it dry completely before putting it back in. Make sure to check the filter regularly, especially if you use your equipment in dusty or dirty conditions. If you notice any damage to the rubber flange or the filter material, it might be time to consider a replacement.