General anesthesia does not permanently require the anesthetic machine, tested daily, as basic equipment. Anesthesia machines may differ in appearance, size and degree of complexity but generally speaking, they consist of sections for:
Space for monitoring equipment
It is imperious that essential medical pipeline gas supply, e.g. oxygen], nitrous oxide and air, are secured firmly to the machine, and readily available without any obstructions, faults or pressure leaks. They should also be tested in between cases, ensuring that the breathing apparatus and breathing circuit are fully patent, for the safe anesthesia of patients. Major constructers of anesthetic machines are General Electric (GE), Larsen & Toubro Limited, Draeger and MAQUET.