Luna G3 Replacement Water Chamber by 3B Medical – CleanCPAP
Luna G3 Replacement Water Chamber by 3B Medical
Luna G3 Replacement Water Chamber by 3B Medical
Luna G3 Replacement Water Chamber by 3B Medical
Luna G3 Replacement Water Chamber by 3B Medical
Luna G3 Replacement Water Chamber by 3B Medical

Luna G3 Replacement Water Chamber by 3B Medical

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Luna G3 Replacement Water Chamber by 3B Medical


Innovative water chamber provides greater efficiency.  The hinged lid on the Luna G3 CPAP water chamber makes refilling and cleaning a breeze.  3B Medical recommends using distilled water in the Luna G3 water chamber to prevent the build up of mineral deposits.  Any type of buildup on the surface of the heat plate of the water chamber can adversely affect the PAP therapy.  


Part Number:

  • LG34510


  • Luna G3 APAP Model LG3600 
  • Luna G3 CPAP Model LG3500
  • Luna G3 BPAP 25A Model LG3700

Device Size

  • Dimensions (L x W x H): 5in x 5.5in x 4.5in
  • Weight 11.65 oz
  • Water Capacity: To maximum fill line 360 mL

Replacement Parts:

Luna G3 Disposable CPAP Filter

Luna G3 Reusable Filter

Luna G3 Series Heated Tubing


Luna G3 CPAP User Manual

Luna G3 BPAP 25A User Manual

Cleaning Procedures:

Regular cleaning of the Luna G3 CPAP / Luna G3 BPAP and its accessories is especially important for the prevention of respiratory infections.  CPAP, BPAP, BiPAP, BiLEVEL sanitizing machines are also recommended.

Cleaning the Water Chamber - Remove the water chamber from the Luna G3 CPAP.  Open the top of the water chamber and hand wash with a mild liquid soap, rinse thoroughly and wipe dry.  Alternatively, a sanitizing machine can be used.

Cleaning the Transfer Box - The transfer box is located between the water chamber and the pap device.  Please reference the user manual.  It is recommended for the transfer box to be cleaned weekly by hand washing with a mild liquid soap, rinse thoroughly, and wipe dry.

Cleaning the Enclosure (exterior of PAP device) - Wipe the exterior surface with a soft cloth to remove dust as needed.

Instructions depend on which type of filter you are using.  Luna G3 is offered with a Disposable Filter or a Reusable Filter.  The filters are not to be used together at the same time. 

If using Disposable Filter (White) - It is recommended to replace the Disposable filter monthly or sooner as needed if showing signs of wear. 

If using Reusable Filter (Black foam)- It is recommended to handwash the filter weekly.  Note it is important the filter be completely dry before placing back into the PAP device.  The reusable filter should be replaced every 6 months or sooner if the filter is showing signs of wear.

Recommended Replacement Intervals:

Nasal Cushion: 1-3 Months

Mask Frame: 6 Months

Headgear: 3-6 Months

Tubing: 3-6 Months

Water Chamber: 3-6 Months

Reusable Filter: 3-6 Months

Disposable Filter: Monthly


Returns accepted within 30 Day of receiving.  Return of CPAP / BiLEVEL devices will only be accepted if in "New" and "Unused" condition.  Customers are responsible for any return shipping cost.


Replacement CPAP or BiLEVEL components DO NOT require an Rx.