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Say goodbye to the nightly chore of refilling your CPAP or BiPAP water chamber. The CSpring MK3® is the next-generation solution designed for people who are serious about their sleep therapy comfort. With built-in sensor logic and UVC light sanitization, this system automatically manages water levels and keeps your humidifier chamber clean—no extra steps required.
✔ Automatic Refills
Smart sensors detect when your water chamber needs replenishing and instantly refill it—so you don’t have to.
✔ UVC Sanitization for Healthier Humidification
UVC light technology helps neutralize up to 99.9% of waterborne bacteria, viruses, and pathogens, ensuring a cleaner sleep environment.
✔ Simple, Seamless Setup
Just swap your current water chamber with the one included, connect the harness and hose, and the system takes care of the rest.
✔ Wide Compatibility
The MK3 works with a broad range of CPAP and BiPAP humidifier chambers and supports multiple water capacity needs.
✔ Smart Night Mode
Choose between ambient night lighting or lights-off mode to fit your sleep preferences.
✔ Easy Maintenance & Clean Design
No messy tubing. No complicated wiring. All parts are removable, making cleaning and upkeep quick and painless.
✔ Eco-Friendly Efficiency
Conserves water by only refilling when needed—no waste, no overflows.
✔ Built to Last
Crafted from BPA-free, medical-grade materials. Comes with a standard 1-year warranty and optional 3-year extended coverage.
Compact Size:
Fits comfortably on any bedside table or nightstand (7"L x 11"H x 10"W).
CSpring MK3® 3L Automatic Water Replenishment System
Compatible CPAP/BiPAP/APAP Chamber
Sensor Harness (3.5 ft)
Water Hose (2 ft)
AC Power Adapter
Extra Sensor Clips
User Guide
We offer free shipping on most CSpring MK3® orders. Not completely happy? Return it within 30 days (return shipping and restocking fee apply).
Say goodbye to the nightly chore of refilling your CPAP or BiPAP water chamber. The CSpring MK3® is the next-generation solution designed for people who are serious about their sleep therapy comfort. With built-in sensor logic and UVC light sanitization, this system automatically manages water levels and keeps your humidifier chamber clean—no extra steps required.
✔ Automatic Refills
Smart sensors detect when your water chamber needs replenishing and instantly refill it—so you don’t have to.
✔ UVC Sanitization for Healthier Humidification
UVC light technology helps neutralize up to 99.9% of waterborne bacteria, viruses, and pathogens, ensuring a cleaner sleep environment.
✔ Simple, Seamless Setup
Just swap your current water chamber with the one included, connect the harness and hose, and the system takes care of the rest.
✔ Wide Compatibility
The MK3 works with a broad range of CPAP and BiPAP humidifier chambers and supports multiple water capacity needs.
✔ Smart Night Mode
Choose between ambient night lighting or lights-off mode to fit your sleep preferences.
✔ Easy Maintenance & Clean Design
No messy tubing. No complicated wiring. All parts are removable, making cleaning and upkeep quick and painless.
✔ Eco-Friendly Efficiency
Conserves water by only refilling when needed—no waste, no overflows.
✔ Built to Last
Crafted from BPA-free, medical-grade materials. Comes with a standard 1-year warranty and optional 3-year extended coverage.
Compact Size:
Fits comfortably on any bedside table or nightstand (7"L x 11"H x 10"W).
CSpring MK3® 3L Automatic Water Replenishment System
Compatible CPAP/BiPAP/APAP Chamber
Sensor Harness (3.5 ft)
Water Hose (2 ft)
AC Power Adapter
Extra Sensor Clips
User Guide
We offer free shipping on most CSpring MK3® orders. Not completely happy? Return it within 30 days (return shipping and restocking fee apply).
Please log in to your account or create a FREE account to see pricing.
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Having troubles deciding on what product is best for you? Call us at 877-815-7300.
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The Heartstrong Sleep community shared their feedback on how this product improved their sleep quality. More importantly, helped them Get Better Sleep.
Typically, you should replace your CPAP supplies every 3 to 6 months. However, things like CPAP cushions should be replaced very 14-30 days. Most resupply orders include multiple cushions.
Resupply orders include: a new mask, tube, water chamber, filters and cushions.
The heated humidifier my help reduce dryness. Also, if you are using a nasal mask, you may want to consider using mouth tape.
All masks have exhalation ports to release air. Some air escaping is normal. However, excessive air or air blowing in your eyes is not. Contact us for help with mask fit or finding a different mask.
Change your disposable (white) filter every 2 weeks, or more often if needed for air quality.
When left untreated, sleep apnea can cause serious health problems. The good news is that it’s treatable. Complete this assessment to see if you may be at risk.
