The Yocan Green Invisibility Cloak Personal Air Filter is fairly simple and easy to use. There is no need to set up various components and the actual tool is an all-in-one system. To reap the benefits of the Yocan Green Invisibility Cloak Personal Air Filter, all you need to do is inhale from your vaporizer or smoking device and exhale on the mouthpiece of the Yocan Green Invisibility Cloak Personal Air Filter. Retail Unit: One (1) Air Filter Approx. 1000+ Uses Four (4) Stage Filter Coconut Carbon Filter ECO-Friendly Biodegradable 100% Recyclable