Identify the piece of equipment primarily used for delivering high concentrations of oxygen.

The non-rebreather mask is primarily designed to deliver high concentrations of oxygen to a patient. It features a one-way valve that prevents the exhaled air from entering the oxygen supply, allowing the patient to receive maximum oxygen concentration. This is particularly beneficial in emergency situations where a patient may be experiencing respiratory distress or conditions such as hypoxia.

This mask usually has a reservoir bag attached, which fills with oxygen and allows the patient to inhale a higher percentage of oxygen with each breath. Because the design minimizes the room air dilution and utilizes the stored oxygen in the reservoir, patients can receive oxygen concentrations of up to 90% or even higher.

Other types of equipment, while useful, do not provide the same level of oxygen concentration. For example, a pocket mask is designed primarily for performing rescue breaths during cardiopulmonary resuscitation (CPR) but does not deliver a high concentration of oxygen. Similarly, a simple mask is less effective in delivering high concentrations than a non-rebreather mask and is generally used for mild cases of hypoxia. The bag valve mask can provide high concentrations of oxygen as well, but it requires a proper seal and is generally used by trained responders to manually ventilate patients rather than continuously supplying oxygen in a