Thanks for purchasing Our closed loop extractor, it is a new-design tool for extracting plant leaves, it is not recommended for food use. For anything unclear about the product, please contact our customer service before using. Kind notes: 1. The vacuum chamber shall be used only in a well-ventilated circumstance, away from heat sources. 2. The stainless steel vacuum tube shall be operated by professionals at any place with good personal protection. 3. The closed extractor can contain 45 grams of raw materials normally. Product Package: 1* 45g vacuum chamber 1* stainless steel tripod 2* stainless steel ball valve 2* gaskets