Using your K&N Universal Air Filter is easy. First, find the right spot in your equipment's air intake system and securely attach the filter using the rubber flanges. Make sure it fits snugly. When it comes to maintenance, check the filter regularly, especially if you use your equipment in dusty or dirty conditions. Once it gets dirty, you can wash it. Just use a mild detergent and warm water, then let it dry completely before reinstalling. A few things to note: don't use harsh chemicals as they can damage the filter. Also, ensure the filter is fully dry to prevent any moisture - related issues. With proper care, your K&N filter will last a long time and keep your equipment running smoothly.