What does a nasal mask or hood cover?

A nasal mask or hood is specifically designed to cover the nose and deliver anesthetic gases directly to the patient through the nasal passages. This method allows for a non-invasive way of administering anesthesia, particularly useful in dental procedures where sedation is required but intubation is not necessary.

The design of the nasal mask or hood focuses solely on the nasal area, ensuring that the patient can breathe normally while receiving the intended anesthetic. This targeted coverage helps to minimize discomfort and provides effective sedative delivery to maintain a calm and cooperative patient during dental treatments.

While there are full face masks that cover the entire face or other devices that serve different purposes, the nasal hood or mask's role is specifically to facilitate the flow of anesthetic gas through the nasal inlet.