Graham Field Lumex Lumbar Support Cushion Color:Navy The diffuser cap with filter

The diffuser cap with filter sits between the mask frame and the short tube

The BIPAP also has a ramp feature

Connectivity options offer more monitoring choices than any leading CPAP brand with integrated Bluetooth® on every device

Air gets concentrated into oxygen after passing through the second filter

Graham Field Lumex Lumbar Support Cushion Color:Navy The diffuser cap with filterGraham Field Lumex Lumbar Support Cushion Features Contoured lumbar cushion can ease lower back pain and promote good posture Made of soft, premium quality polyurethane foam which provides excellent support and comfort Ideal size and shape for travel and home use Attractive, removable and washable covers Convenient elastic strap hold lumbar cushion in place Specification Brand: Graham Field Product Type: Lumbar Support Cushion Measures: 14" x 13"