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CSpring MK3 CPAP Humidifier Water Chamber Refilling System
CSpring MK2 with ResMed AirSense 11
Water chamber plugged into CSpring MK2 with ResMed AirSense 11
CSpring MK3 CPAP Water Chamber Automatic Refilling System top adapter included airsense 11
CSpring MK3 CPAP Water Chamber Automatic Refilling System top adapter included airsense 10
CSpring MK3 CPAP Humidifier Water Chamber Refilling System
CSpring MK3 CPAP Humidifier Water Chamber Refilling System
Cspring™ | SKU: CSMK3AS11

CSpring MK3 CPAP Humidifier Water Chamber Refilling System

$299.99
CSpring MK3 CPAP Humidifier Water Chamber Refilling System
CSpring MK2 with ResMed AirSense 11
Water chamber plugged into CSpring MK2 with ResMed AirSense 11
CSpring MK3 CPAP Water Chamber Automatic Refilling System top adapter included airsense 11
CSpring MK3 CPAP Water Chamber Automatic Refilling System top adapter included airsense 10
CSpring MK3 CPAP Humidifier Water Chamber Refilling System
CSpring MK3 CPAP Humidifier Water Chamber Refilling System

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The CSpring MK3 Automatic CPAP Water Chamber Refilling System is a smart device that keeps your humidifier topped up automatically. It connects to your existing water chamber using a lid adapter and sensors, making it easy to integrate into most CPAP setups without needing to refill manually.

No more late-night refills or waking up to a dry system, this setup does the work for you.

It uses a built-in UVC light to help maintain water quality and BPA-free materials for safer use. By managing humidity levels consistently, it helps reduce dryness and makes therapy more comfortable with less effort.

Returns Policy
CPAP Supplies Guide
  • Use distilled water to prevent mineral buildup and help extend the life of your system and humidifier chamber.
  • After installation, always test the system before use to ensure the auto-refill function and UVC sanitization are working properly.
  • Check the UVC light indicator regularly to confirm that sanitization is active and protecting your water supply.
  • Clean the water chamber and tubing weekly with CPAP Soap and warm water to maintain hygiene.
  • Use a CPAP cleaning brush set to scrub the inside of your tubing and hose connectors thoroughly.
  • Keep the water hose free from bends or kinks to ensure smooth and uninterrupted water flow throughout your therapy.
  • Replace the water chamber every 6–12 months, or sooner if there are signs of wear, staining, or odor.
  • Make sure the CSpring MK3 system is placed on a stable surface to avoid misalignment of the sensor harness or water line.
  • Inspect the water hose and sensor harness periodically for signs of wear or damage, and replace any compromised components promptly.
  • Only use the CSpring MK3 with compatible CPAP models: AirSense 11, AirCurve 11, AirSense 10, AirCurve 10, and DreamStation 2 for reliable performance and proper fit.
  • If you're unsure whether your setup is compatible, visit the CPAP Machines page or contact support before installation.
  • Avoid direct sunlight or high heat exposure to protect the electronics and prevent interference with the UVC light or sensors.
  • Warranty covers 90 days, with returns accepted within 14 days and exchanges available up to 30 days.

CSpring MK3 CPAP Humidifier Water Chamber Refilling System

$299.99
$299.99
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Product Specifications

Compatibility AirSense 11, AirCurve 11, AirSense 10, AirCurve 10
Dimensions 7" (L) x 11" (H) x 10" (W)
Material BPA-free, medical-grade materials
Warranty 1-year standard (Device); 90 days (Accessories)
Returns Accepted within 14 days
Exchanges Accepted within 30 days
Sanitization Method UVC light, kills 99.9% of bacteria, viruses, protozoa
Sensor Technology Advanced sensors for precise water level management
Operational Modes Ambient light mode, lights off mode
Power Supply AC power supply included

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Product Features

Automatic Humidity Control

The CSpring MK3 maintains optimal water levels in your CPAP humidifier by using smart sensors. These sensors monitor water levels continuously, ensuring consistent humidity throughout your therapy without manual refills.

Silver Ion Antimicrobial Technology

The water chamber uses silver ion technology to inhibit bacterial growth, preventing biofilm formation and maintaining hygiene over time. This technology reduces the risk of respiratory irritation caused by microbial buildup.

Quick and Simple Installation

Installation involves replacing the existing humidifier lid with the CSpring MK3 adapter, connecting the sensor harness and water hose.

overview image

Advanced Sensor Harness

Equipped with a 3.5-foot sensor harness, the system actively manages water flow to prevent overfilling or running dry.

Eco-Friendly

The automatic refilling system minimizes water wastage compared to manual refilling methods. By supplying only the necessary amount of water, it contributes to more efficient water use during therapy.

Safe Materials

The device is constructed using BPA-free and medical-grade materials, meeting safety standards for prolonged use in medical applications. It’s designed for durability, capable of withstanding daily use.

Wide Compatibility

The refilling system is designed to integrate with various CPAP and BiPAP humidifier chambers, including the AirSense and AirCurve 11, AirSense and AirCurve 10, and DreamStation 2.

Quick and Simple Installation

Installation involves replacing the existing humidifier lid with the CSpring MK3 adapter, connecting the sensor harness and water hose.

Expert Tips & Vídeos

CPAP Supplies Replacement Times

How to Clean CPAP Machine, CPAP Mask & Tubing

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FAQs

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Find Solution

Why do CPAP machines have humidifiers?

CPAP humidifiers add moisture to prevent dry mouth, throat irritation, and nasal congestion caused by pressurized air.

Are all CPAP humidifiers the same?

No, there are two types: - Integrated humidifiers (built into the CPAP machine) - Standalone humidifiers (separate units that connect to the CPAP)

Do I have to use a CPAP humidifier?

No, but it helps reduce dryness and discomfort. If you experience dryness, adding a humidifier can improve comfort.

What type of water should I use in my CPAP humidifier?

Use distilled water to prevent mineral buildup and bacteria growth. Avoid tap or bottled water.

How often should I clean my CPAP humidifier?

Daily: Empty and rinse with warm water. Weekly: Wash with mild soap, rinse well, and let it air dry.

Why is there water in my CPAP mask or hose?

This is rainout, caused by humidified air cooling in the hose. Using heated tubing or a hose cover can help.

Can I travel with a CPAP humidifier?

Yes, but some travelers prefer to turn off the humidifier to reduce bulk. If flying, empty the water chamber before packing.

When should I replace my CPAP humidifier chamber?

Every 6 months, or sooner if you notice discoloration, cracking, or buildup that doesn’t clean off.

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