An SCBA is a respiratory protective device designed to provide breathable air in environments that are immediately dangerous to life or health (IDLH). These could include areas filled with smoke, toxic gases, chemical fumes, or insufficient oxygen levels. Unlike air-purifying respirators, SCBAs supply clean air from a cylinder, making them ideal for use in situations where the atmosph... https://vishalbharat.in/post/114811_safety-breathing-apparatus-dipti-fire-services-https-diptifire-com-scba-when-it.html