The Graham Field Nebulizer Replacement Filter is designed to work with the Graham-Field Neb-u-Lite LX2 Nebulizer Compressor. It should be replaced every 30 days or whenever it looks to be unclean. The Graham Field John Bunn Neb-u-Lite LX2 Nebulizer Compressor is a low-noise, high-quality aerosol compressor that is easy to use. It contains an integrated carrying handle with a storage compartment and a built-in nebulizer holder, as well as rounded corners. High performance and extended life are guaranteed with a piston-driven motor.