For most people who are diagnosed with obstructive sleep apnea, immediate treatment and relief will most likely come in the form of a continuous positive airway pressure (CPAP) or bi-level positive airway pressure (BiPAP) machine. The device used depends on the type or level of apnea, but both work in much the same way, providing enough air pressure to open breathing passages and assure full and relaxing sleep. In order to guarantee maximum effectiveness the patient is required to wear a CPAP mask, usually over the nose.

CPAP masks come in four basic types:

Nasal masks, which fit over the nose;

Nasal pillows, which are inserted directly into the nostrils without covering other parts of the face;

Full face masks, which cover both the nose and the mouth;

Oral masks, which fit only over the mouth

All CPAP masks come in a number of different styles. Both the mask itself and the headgear, generally elastic straps that can be adjusted using hook and loop fasteners are sold together or separately from online distributors.

The type of CPAP mask which is best for each individual depends on a mix of effectiveness and personal comfort. Creating a proper seal and guaranteeing maximum air pressure is the most important factor in choosing a mask. People who tend to move around while sleeping will most likely need to use one of the nasal or full masks, as opposed to the nasal pillows, which can easily be dislodged. The type of headgear used is also affected by sleeping habits. Those who sleep on their sides or on their stomachs will sleep better with headgear that goes around or over the top of the head, instead of wrapping ground the sides.

Though most people have little trouble adjusting to the mask and almost immediately notice a difference in the amount and depth of sleep, others find the adjustment difficult, if not impossible. The feel of the plastic may bother them, or the headgear, or, if they are restless sleepers, may find the hose itself an encumbrance to getting a decent night’s sleep.

Claustrophobia can also be an issue. Others find it difficult to create a proper seal using one type of mask, and need to try another. Many using the nasal mask or nasal pillows find it difficult to keep their mouth closed, which can result in breathing difficulties, and will need to switch to the full face mask. Those who suffer from chronic nasal congestion will need to use the oral mask.