The device pulls standard room air (which naturally consists of about 21% oxygen and 78% nitrogen) through built-in filters to remove dust and debris.Compression: An internal compressor pressurizes the filtered air, forcing it into a two-cylinder system.Nitrogen Separation: The pressurized air passes through cylinders packed with a material called Zeolite. Zeolite acts as a molecular sieve, trapping the larger nitrogen molecules while allowing the smaller oxygen molecules to pass through into an accumulator tank.