Oxygen masks are used for oxygen therapy and it helps in providing oxygen support when the body does not produce it enough. These masks are required for different situations, such as a medical condition or when going on high altitudes. These can be used during respiratory or lung disorders, a severe asthma attack, dyspnea, hypoxia, and sleep apnea. These masks are usually available in two types - one that covers the mouth and nose, also called an oral-nasal mask, and the other a full-face mask. These masks are made of PVC material and come with elastic straps. These products are generally transparent. Some of the known brands for these masks are Control D, Wellstar, EliteMed, and Otica. Some of these masks have feather edges to reduce irritation and give comfort to patients. They come in a variety of packs, such as packs of two, three, four, seven, eight, and so on. Some of the high concentration oxygen masks come with a reusable reservoir bag. Many of these masks are sterile products and are meant for single use. Oxygen mask online price depends upon their variety, type, availability, and brand. They are available for both children and adults. You can shop for these masks according to your needs.