These disposable filters from Human Design Medical are designed exclusively for use with Z1 and Z2 series. Disposable filters remove impurities from the air as it is drawn into your CPAP machine to ensure they don't damage your CPAP.
USAGE: A filter must always be in place when the CPAP machine is in use. For optimal performance, these disposable filters should be changed at least once a month or sooner if they appear soiled or discoloured. For complete instructions, review the documentation that came with your equipment.
DIMENSIONS: 3.5 x 2.0 x 2.0 Inches