The ResMed H5i standard water chamber is a replacement humidifier tub built for the ResMed S9 series CPAP machine paired with the H5i heated humidifier, and CPAP Supplies Canada carries it for S9 owners across Canada. It is the right part if your current tub has clouded, cracked, or picked up mineral scale that will not scrub off.

Why choose the ResMed H5i standard water chamber?

• Exact fit: made for the S9 series and its H5i humidifier, so it seats and seals the way the original did.
• Clean humidification: a fresh tub gives you clear water and steady moisture instead of scale and cloudiness.
• Standard disposable design: this is the standard tub rather than the cleanable version, so you replace it rather than deep clean it.
• Simple swap: lift out the old chamber and drop in the new one, no tools needed.

Care and water

Use distilled water only. Distilled water keeps mineral buildup out of the tub and off the heater plate, which helps the chamber last and keeps your air free of taste and odor. The standard chamber is not dishwasher safe, so rinse it gently by hand and let it air dry when you are between fills.

Replacement schedule

Plan to replace the chamber every six months, and sooner if you notice cloudiness, cracks, or scale that will not rinse away. A tub in good shape protects both your comfort and the humidifier itself.

Frequently asked questions

Does this fit the ResMed AirSense 10?
No. This chamber is for the S9 series with the H5i humidifier. The AirSense 10 uses a different HumidAir tub.

Can I put it in the dishwasher?
No. The standard H5i chamber is disposable and not dishwasher safe. Hand rinse only and replace it on schedule.

Canada-wide shipping

CPAP Supplies Canada ships the ResMed H5i standard water chamber across Canada, and this replacement accessory does not require a prescription.