1. Remove any material that will scratch the lens (dust, insects, etc.)
2. Apply a small amount with your finger to cover the entire lens
3. Buff the lens with a clean micro fibre cloth or chamois until all Cat Crap has been buffed off.
4. This will give you a clean streak free lens or visor that is highly resistant to fogging.

Cat Crap should be used every couple of days to keep your lens or visor clean and resistant to fog.