All surface air diving systems (Oilless) must have proper air filtration going to the diver below. This exclusive only to Gator Gill LLC 5 Micron Poly fiber carbon filter is the best and safest you can buy period to add to most Oilless Compressor. It gives you peace of mind removing the majority of air contaminates. You are breathing through your mouth not your nose when diving. Without filtration you risk beathing in unwanted particles. Please get some type of filtration. Check out our other more advanced filters and accessories here by clicking on Sellers other items. We are your one stop shop for all Hookah air diving needs.