Consistent Comfort & Humidification for Better Sleep

Product Description

Upgrade your sleep therapy with the Luna G3 Replacement Water Chamber, crafted by React Health (formerly 3B Medical) for seamless compatibility with all Luna G3 CPAP & BiPAP units. Designed for easy cleaning and filling, this chamber helps deliver consistent humidification night after night

Key Features & Benefits

Perfect Fit for Luna G3 Models
Specifically engineered to pair with Luna G3 CPAP/BiPAP machines for a secure, leak-free connection
360 mL Capacity
Optimized size holds enough water for prolonged humidification throughout your sleep session
Hinged Lid Design
Allows effortless refilling and thorough hand-cleaning—no dishwasher required
BPA‑Free & Latex‑Free
Manufactured from medical-grade, allergen-safe materials for peace of mind
Routine Replacement Schedule
Recommended every 3–6 months to prevent mineral buildup and maintain humidity performance

Why Choose This Water Chamber?

Consistent Humidification
Maintains optimal moisture levels throughout the night, reducing dryness and enhancing comfort
Hygienic & Easy Maintenance
Smooth interior and removable lid mean no hidden corners—promoting cleanliness and preventing bacteria buildup
Reliable and Durable
Replaces worn or cracked reservoirs to ensure your therapy stays uninterrupted, with many users praising its perfect fit and quality

Purchase Info

Prescription Required: Must provide a valid CPAP/BiPAP prescription for U.S. orders.
Shipping: Available within the U.S. only.
SKU: LG34510

30 Day Return Policy

We accept returns on all unopened products up to 30 days after initial purchase. Learn more.

Best Price Guaranteed

If you find the same product for a lower price, let us know and we will match the price.

Free Shipping

Spend $99 or more and shipping is on us! Our fast shipping process will get your product to you quickly- and for free!

Unlimited Support

The Hiro Health team of experts are always available to speak with you should you have any questions about your product.

What’s Included

Luna G3 Replacement Water Chamber
Included in your package:

One Replacement Water Chamber for the Luna G3.

Ensure your CPAP humidifier is always performing at its best. Add the Luna G3 Replacement Water Chamber to your cart now and sleep better tonight!

ResMed

React Health

Philips Respironics

Fisher & Paykel

BiPAP/Bi-Level

Travel CPAP

Full Face Style

Nasal Style

Pillow Style

Mask Parts

Machine Parts

Mask Parts

Tubings

Filters

Power Supplies

Home Sleep Testin

Hiro Health Complete Path

Rx Assistance

Machine Parts

Filters