Breathing mask

A breathing mask is a mask that covers the mouth, nose, and optionally other parts of the face or head, designed to constrain and direct the wearer's breath to and/or from a particular breathing apparatus. It may mean, or be part of, one of these types:


 * In medical treatment
 * For cardiopulmonary resuscitation
 * Bag valve mask, a device used in resuscitation of non-breathing casualties, optionally using supplementary oxygen.
 * Pocket CPR mask, a simpler mask used for mouth-to-mouth resuscitation; easier to carry than bag valve masks
 * For supplying oxygen or oxygen enriched air
 * Built-in breathing system (BIBS) mask, an oro-nasal mask providing treatment, decompression, or emergency gas in a hyperbaric chamber
 * Non-rebreather mask, an oro-nasal mask used in medicine to assist in the delivery of oxygen therapy
 * Oxygen mask, which covers the mouth and nose of a patient undergoing oxygen therapy as first aid or longer-term treatment, or a passenger in an aircraft which has depressurised at altitude
 * Continuous positive airway pressure mask
 * Anesthetic mask


 * For infection control
 * Surgical mask, also known as a procedure mask, is intended to be worn by health professionals during surgery, to protect the patient from being infected by the operating theatre staff's breath.
 * Cloth mask; early surgical masks were cloth. Cloth masks are also used for protection in pandemics.
 * Respirators (see below) may also be used for infection control


 * As a personal protective equipment respirator a device designed to protect the wearer from inhaling harmful dusts, fumes, vapors or gases
 * Air-filtering respirators
 * Dust mask, a flexible pad held over the nose and mouth by elastic or rubber straps to protect against dusts encountered during construction or cleaning activities. Usually uncertified, and thus not considered a "respirator" in some jurisdictions.
 * Filtering facepiece respirator, a stiffish dome of filter material fitting over the nose, cheeks, and chin. May look like some dust masks, but is certified.
 * Elastomeric respirator, with the facepiece made of flexible elastomer, usually reusable with disposable filters. May protect against particulates, gasses, or both, depending on the filters used.
 * Gas mask, respirator designed to protect the user from toxic gases in conflicts
 * Early smoke-mask respiratorss for firefighters (similar to diving helmets, but with air-filtering)
 * Atmosphere-supplying respirators
 * SCBA mask, or BA mask, a full face mask covering the mouth, nose and eyes of a person wearing self-contained breathing apparatus, connected to a breathing gas supply carried by the user
 * Rebreather mask
 * Underwater breathing masks
 * Full face snorkelling mask, a watertight mask with integrated air passages allowing the user to breathe atmospheric air while swimming face-down at the surface of the water
 * Full face diving mask, watertight masks covering the eyes, nose and mouth, allowing the wearer to breathe underwater from a self-contained or surface-supplied breathing gas supply
 * Band mask, a heavy duty full-face diving mask for surface-supplied diving
 * Diving helmet, covering the entire head in a dome of air.


 * By coverage
 * Quarter-mask or orinasal mask, covering the mouth and nose only
 * Half-mask (disambiguation), from below the eyes to below the chin
 * Fullface mask, from above the eyes to below the chin