An operating room is the unit of a hospital where surgical procedures are performed. Operating room equipment is varied and differs according to the size of the hospital and the specialty of the hospital.

However, all operating rooms have some basic operating room equipment. Operating room equipment includes machines for respiratory and cardiac support, emergency resuscitative devices, patient monitors, and diagnostic tools.

All operating room equipment needs to be sterile. All personnel working in operating rooms wear protective clothing called scrubs. They also wear shoe covers, masks, caps, eye shields, and other coverings to prevent the spread of germs. Operating rooms are usually very brightly lit. They are air-conditioned to prevent the spread of infection.

Operating rooms may be designed and equipped to provide care to patients with a range of conditions. The operating room machine available at the hospital is often decided by the size and specialty of the hospital.

Operating rooms of all Hospitals with strong focus on cardiac problems will include operating room machines such as electrocardiogram machines, heart lung bypass machine, defibrillators and infusion pumps.

Most operating rooms will have operating room machines such as mobile x-ray units and handheld portable clinical laboratory devices, called point-of-care analyzers, which are used for blood analysis at the bedside.

Some of the disposable operating room equipment includes urinary catheters, which are used to drain urine during surgery, blood pressure monitors, chest and endotracheal tubes, and monitoring electrodes.

Operating room equipment is designed and equipped to provide specialized care to patients with specific conditions. The instruments used during a surgical procedure are different for external and internal treatment. Once internal surgery is started, the surgeon uses smaller, more delicate operating room equipment tools.

Operating rooms are sterile environments. The operating room equipment is sterilized after each use. Each doctors and nurses entering operating room wear protective clothing and masks and caps to prevent the spread of infection.