This is a Datex-Ohmeda Tec 7 Isoflurane vaporizer. This device will be biomed certified prior to shipping and will include paperwork from biomed service company indicating that it has passed, and is safe for patient use. We have a good number of these in stock (why we are selling cheap). All are in good cosmetic condition, and again, will be certified prior to shipping. Money back guarantee if dissatisfied upon receipt. Feel free to contact us with any questions or concerns.