Check the listing for details. MSA Self Contained Breathing Apparatus. Condition: Used. Listed at 150.00 USD. This MSA Self Contained Breathing Apparatus is a top-quality device that ensures safety and comfort while on the job. With its reliable performance and durable construction, this air supply unit is perfect for professionals working in various industries. The brand MSA is known for producing high-quality safety equipment, and this product is no exception. Designed for use in rescue air supplies, this air supply unit is a must-have for anyone in the business and industrial field. Its self-contained design ensures that you have everything you need to breathe comfortably and safely, while its compact size makes it easy to carry around. Whether you're a firefighter or a professional in the rescue industry, this MSA Self Contained Breathing Apparatus is the perfect choice for your safety needs.