Is nitrous oxide safe?

It is totally safe. It is considered the safest sedation agent for controlling anxiety during a dental or medical treatment. It is a light anesthetic that is completely removed from the system after a session. The benefits of nitrous oxide are strongly recommended to reduce the stress of patients that have certain conditions such as hypertension, angina or have had a heart attack in the past. Unlike a general anesthesia, a sedation using nitrous oxide keeps the patient fully awake.