Using your Injen NanoWeb Dry Air Filter is easy. Just install it in your vehicle according to the manufacturer's instructions. When it comes to maintenance, you can clean it with a light blast of compressed air. This helps keep it in good working condition. As for precautions, avoid over - oiling the filter as it's a dry filter and doesn't require oil. Also, make sure to check it regularly for any signs of excessive dirt or damage. If you notice any issues, it might be time to clean or replace the filter. With proper use and care, this air filter will serve you well and keep your engine running smoothly.