Various embodiments of the invention may provide a breathing and/or anesthetic unit that is portable, compact, inexpensive, and convenient, and which may expedite medical procedures by allowing a health care provider to quickly sedate a patient. Such a unit may be ideal for minor medical procedures needing mild or moderate analgesia/sedation (e.g., <30 minutes) in various fields. Such a unit may include (i) a handheld gas supply container including a therapeutic amount of anesthetic gas (ii) a mask (iii) a single-use, uninterruptable flow coupler to couple the mask to the supply container and (iv) a handheld, self-contained, recovery gas container, including a negative pressure, coupled to the mask.
