We're Happy To Help - Call 888-505-0212
Why Shop DirectHomeMedical.com? Free Shipping Over $99 View Shopping Basket

SleepStyle 604 Humidified CPAP Machine with ThermoSmart (DISCONTINUED)

  • Discontinued August 2012 - Information for Reference Only

We stock a wide range of parts, filters and accessories. Click here to view replacement parts for this product.

Fisher & Paykel's SleepStyle 604 CPAP System with built-in humidifier and ThermoSmart Heated Tubing is the first CPAP in the world to deliver constant optimal humidification with anti-rainout benefits. ThermoSmart technology offers a unique heated breathing tube that enables the constant delivery of higher, optimal humidity levels and helps prevent condensation to optimize patient comfort and sleep. A built-in heated humidifier means the SleepStyle 604 is quiet, comfortable, small, and easy to use.

Using a Heated Humidifier during CPAP Therapy is proven to improve therapy acceptance and compliance. The SleepStyle 604's built-in heated humidifier offers a truly integrated, compact, and practical solution. The humidifier features Ambient Tracking PLUS Technology that auto-adjusts humidification levels to compensate for changes in room temperature, and humidity loss during mouth/mask leak. In addition users can raise and lower humidity levels with the push of a button whenever desired. Both disposable and long life humidifier chambers are available.

The unique ThermoSmart heated breathing-tube delivers optimal (higher and customized) levels of humidity independent of room temperature. ThermoSmart improves comfort and effectiveness through: Prevention of condensation and gurgling noises, absolute mask pressure stability, and optimal humidity to allevaite upper airway congestion.

Two kinds of noise can annoy you and your sleeping partner during sleep therapy. There is the noise of the CPAP system and the gurgling noise that results from condensation (rainout) forming in the airtube. The 604 CPAP addresses both issues. It operates very quietly and the ThermoSmart heated breathing-tube minimizing rainout noise from condensation.

The SleepStyle 604 is compatible with Titration Maximizer and Compliance Maximizer Software. Titration Maximizer Software allows sleep technicians to titrate remotely via a PC in their labs. Compliance Maximizer Software is a performance monitoring technology that can record and report on machine usage using customizable reporting forms and content for better therapy monitoring.

With push button ease users can lower pressure at the start of sleep, or after waking during the night, and the SleepStyle system will raise it slowly over time to create a more comfortable overall sleep experience.



Earn points for every dollar you spend. Cash in points you've earned for big discounts on future orders. Learn More About Customer Rewards

Manufacturer Fisher & Paykel
In The Package SleepStyle 604 Humidified CPAP Machine, Travel Bag, Starter Filters, 6-Foot ThermoSmart Breathing Tube, Two Humidifier Chambers, Users Manual, Power Cord, 2-Year Manufacturer's Warranty
Part Number(s) HC604
HCPCS Insurance Code E0601
Prescription Item A Prescription is required for the purchase of this item.

Size (Approximate) CPAP with Humidifier = 10.7 x 6.7 x 6.9 inches
Weight (Approximate) CPAP with Humidifier = 4.6 lbs
Mask Compatibility Compatible with all CPAP/BiPAP Masks
Tubing Compatibility Compatible with SleepStyle ThermoSmart Heated CPAP Tubing

Operating Modes CPAP
Pressure Range 4cm to 20cm H20 (±1 cm H20)
Ramp Time 20 minutes
Ramp Start Pressure 4cm to CPAP Pressure
Altitude Compenstation Manual 0 - 9000 Feet
Sound Levels Average less than 30 dBA
Comfort Technologies Ambient Tracking PLUS
Leak Compensation NA
Auto On/Off NA
Humidifier Internal Heated Humidifier Built In

Data Storage Total run hours, average compliance hours per night

Universal Power Supply 100-115V 220-240V; 50-60 Hz
External Power Supply NA (The SleepStyle Series uses an internal power supply so there is no external "power brick" just a slimline power cord!)

Water Capacity 600ML at Recommended Water Level

CPAP 2-Year Manufacturer's Limited Warranty
SleepStyle 604 Humidified CPAP Machine with ThermoSmart (DISCONTINUED)


This product has not yet been reviewed.

View Popular Sleep, Oxygen & Asthma Therapy Search TermsDiscontinued Items


We Ship UPS We Ship US Postal Service MasterCard Accepted American Express Accepted Discover Card Accepted PayPal Accepted

DirectHomeMedical offers online support through our website, live chat and toll free support during normal business hours, and email support 24-hours a day. Please contact us if you have any questions about our services or the products we sell. DirectHomeMedical.com is authorized and approved, by the manufacturers we represent, to sell and ship products to end-users residing in the United States, not to other third parties or businesses. A prescription is required for the purchase of certain products on this site. All products offered are sourced directly from the original equipment manufacturers or their representatives. PROPOSITION 65 WARNING: Some products on this site may contain a chemical known to the State of California to cause cancer, birth defects or other reproductive harm. COPYRIGHTS: Selected product images and descriptions used throughout this site are used with the permission of the copyright holders. All ResMed Product Images ResMed 2017 Used with Permission. All Philips Respironics Product Images Philips Respironics 2017 Used with Permission. All Fisher & Paykel Healthcare Product Images Fisher & Paykel Healthcare 2017 Used with Permission. Site Design & Content Copyright 2004-2017 DirectHomeMedical. Respironics recommends that new patients purchase their devices, masks and initial accessories from a homecare company that can provide an individualized patient equipment set-up, clinical and after-sale support, and a program to assist patients with therapy success. All products and services advertised on this site are provided by DirectHomeMedical.com, or its designates, independently of the manufacturer. Due to manufacturer's advertising policies some ResMed, Respironics and HDM products may be excluded from some promotions.
Privacy Policy & Terms of Use | Return & Exchange Policy | Call Toll Free 888-505-0212 | Fax 603-386-6277