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SleepStyle 604 Thermosmart CPAP Machine with Built In Heated Humidifier

BY Fisher & Paykel  |  Item #HC604jhu
(18) Read Reviews

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Set Up and Use - SleepStyle 200, 242, 244 & 600
How to Clean and Maintain your CPAP Equipment - SleepStyle
Traveling with CPAP - SleepStyle 200, 242, 244 & 600
How to Clean and Maintain your CPAP Equipment
Rainout, Causes & Solutions
ThermoSmart CPAP Heated Humidifier Hose Technology
Overview of CPAP Power Cords and Power Supplies
Overview of CPAP DC Cables and Batteries
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SleepStyle 604 Thermosmart CPAP Machine

The SleepStyle 604 with Thermosmart is the most advanced, high end humidification system in the world. The HC604 uses patented heated coil tubing to eliminate rainout and will automatically adjust to deliver the exact amount of humidification you need as you sleep.

SleepStyle 604 Thermosmart CPAP Machine

The SleepStyle 604 with Thermosmart is the most advanced, high end humidification system in the world. The HC604 uses patented heated coil tubing to eliminate rainout and will automatically adjust to deliver the exact amount of humidification you need as you sleep.

Learn More About Your New Machine

Clinical Results

Until very recently the benefits of humidification in CPAP therapy have been compromised by changing ambient temperature. Changes in temperature cause condensation and mask pressure instability in addition to humidity loss in therapy. As the air travels from conventional heated humidifiers to you via your hose, heat and moisture are lost due to the temperature of the hose and the air around it. This may result in rainout, or simply a compromised humidity level in the air that is traveling through the hose.

ThermoSmart Technology, with its heated breathing tube adapted from sophisticated intensive care humidification, delivers higher and customized humidity levels that are maintained throughout the night, regardless of ambient temperature change. ThermoSmart Technology provides optimal patient comfort and therapy effectiveness through prevention of condensation and absolute mask pressure stability, but also through optimal humidity delivery in all environments.

Research has shown that CPAP users experience mouth leak up to 31% of total sleep time. Mouth leak is known to cause excessive drying of the nasal mucosa and congestion due to increased nasal airway resistance. Humidity levels of 30mg/L (absolute) at 30°C have shown to prevent any increase in nasal airway resistance following a mouth leak.

Conventional humidifiers are unable to supply these levels. Typical conventional humidifier will only provide humidity levels of approximately 18mg/L (absolute) at 22°C. Any efforts to increase this will only result in condensation.

Currently, optimal humidity delivery is only possible with ThermoSmart Technology. It results in optimal sleep performance due to higher comfort levels leading to improved patient acceptance and compliance.

Sound Level: 30-dB

Machine Weight: 4.6

Machine Warranty: 2 Years

Default Machine Settings: 4-18.5cm H2O

Humidification Available: Yes

Humidification Type: Built-In

Heated Hose Option: Yes

Ramp Mode: Yes

Good For: [object Object]

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This was the world's first CPAP to combines a computer chip and a heated hose to deliver the greatest absolute humidity at the nose without condensation in the hose. If you have trouble with your sinus or have a dry mouth when on cpap, this is the machine for you.

This is the fourth generation of CPAPs from Fisher & Paykel, the first company to offer heated humidifiers for cpap related use.

The SleepStyle HC604 must be used with the ThermoSmart Heated Hose for 600 Series CPAPs. A standard CPAP hose is not compatible.

The SleepStyle HC604 will not work with:
  • O2 Enrichment Adapter
  • Respironics Bacteria Filter


Mask/Machine Compatibility


You can use any mask with this machine. The machine may be used with the ComfortCurve mask, however it may require some effort to connect the mask hose to the machine hose and does increase the the hose length. If you want to use this machine with the ComfortCurve, we suggest purchasing a hose connect to aid in connecting the mask to the hose.

User Manual:

The user manual included with this machine can be viewed and downloaded here: SleepStyle Machine.

Manufacturer Warranty
This machine comes with a 2 Year Manufacturer Warranty. CPAP.com will work with the manufacturer on your behalf if the machine needs repairs. Please follow these steps:

  • Contact us at cpap@cpap.com or 1-800-356-5221 to receive an RMA (Return Merchandise Authorization) Number before returning the equipment
  • Include a note with the machine describing the issue you are experiencing, along with your full contact information to include a return shipping address and the RMA number provided to you
  • Ship only the defective items to CPAP.com at 13235 N Promenade Blvd Stafford, TX 77477
  • Do not return accessory items such as the carry bag, hose or power cords
  • Email updates will be sent to keep you informed as the machine moves through the warranty process
  • CPAP.com will contact the manufacturer on your behalf and handle all shipping between us and the manufacturer
  • The repaired or replaced unit will be returned to you. Shipping charges may apply.

Please note: The manufacturer warranty is voided by water damage or misuse of the machine.

360
Universal Power

These CPAP machines operate automatically between 110v and 240v AC. When traveling either inside or outside the USA, there are no switches to switch or fuses to change. The machine will automatically sense what voltage is needed and set itself to run on that power.

The user will need to adapt the plug that goes into the wall to fit the style of outlet socket that is being used. This is simply done with a Power Adapter Plug kit. This is the same type of plug adapter that would be used with a hair dryer or an electric shaver. World Traveler Power Adapter Plugs.

Respironics Battery Kit with 400 Watt DC to AC Power Inverter.

This battery kit comes with an external 400 Watt DC to AC power inverter for CPAP and BiPAP machines. The kit provides AC power for machines that do not come with a DC input. Use your machine's AC cord to connect to the power inverter. The Respironics portable battery pack is an external lead acid battery that is the ultimate in power, portability and convenience. This battery kit comes with the Respironics battery and the 400 Watt DC to AC Power Inverter.
What does CPAP therapy do?
CPAP therapy provides a constant airflow which holds the airway open so that uninterrupted breathing is maintained during sleep. It is traditionally provided through a nasal mask that seals around the nose to maintain the pressure level.
Which CPAP masks work on which machines?

Any mask will work with any machine, with one important exception. The ResMed AirMini is only compatible with certain ResMed CPAP masks. Compatible masks for the AirMini are as follows:

  • ResMed AirFit™ N20 Nasal Mask
  • ResMed AirFit™ F20 Full Face
  • ResMed AirTouch™ F20 Full Face
  • ResMed AirFit™ P10 Nasal Pillow

When considering another CPAP, APAP or BiPAP machine from ResMed or any other manufacturer, mask compatibility extends to all brands. The AirMini uses non-standard tubing to connect the machine to the mask, and is the primary reason why other masks won't work with the AirMini. Despite this issue, many of our customers consider the AirMini to be an excellent machine.

How do I choose the machine that is right for me?
We provide our customers with many tools to make informed decisions about their machine purchases. Options include:
How can I compare different machines?
We work very hard to provide many different ways for our customers to compare products. Here are the machine product guides we have created and maintain:
  • CPAP Machine Comparison Guide. This guide stacks up every CPAP machine we sell, feature by feature. If you don't know the meaning of a feature, click the question mark for a definition. The links below will take you to the most popular CPAPs, or all CPAP machines we sell.

    Compare Most Popular CPAP Machines

    Compare All CPAP Machines

  • Auto Adjusting Machine (APAP) Comparison Guide. This guide stacks up every APAP machine we sell, feature by feature. If you don't know the meaning of a feature, click the question mark for a definition. The links below will take you to the most popular APAPs, or all APAP machines we sell.

    Compare Most Popular APAP Machines

    Compare All APAP Machines

  • BiPAP, VPAP and BiLevel Comparison Guide. This guide stacks up every BiPAP machine we sell, feature by feature. If you don't know the meaning of a feature, click the question mark for a definition. The links below will take you to the most popular BiPAPs, or all BiPAP machines we sell.

    Compare Most Popular BiPAP Machines

    Compare All BiPAP Machines
What comes with my machine?
Machines come with a six foot hose, power cord, at least one filter, and manuals. Most manufacturers include a carrying case which is designed specifically for their equipment. CPAP, APAP, and BiPAP machines do not come with a delivery system or mask. CPAP masks must be purchased separately.

To see the list of what specifically comes with each machine, you can Browse for a machine. Then on the product page, click the "Specs" tab to see a full list of what comes with the machine.

Do all CPAPs use filters?
Yes, all CPAPs use at least one filter that is usually a type of foam material and washable. Some CPAPs offer finer filtration with the addition of a disposable paper filter.

Cleaning and changing filters is the only maintenance required for a CPAP machine.

The filters are located at the back of the machine at the air intake.
Are prescriptions required for mask, machine, humidifier, and EPAP purchases?

Yes. Federal law requires we have a valid prescription on file before we ship your mask, machine, humidifier, or EPAP therapy, including Provent and Bongo RX. You will also need a prescription to purchase the Nightbalance POSA device.


We provide many easy ways to get your prescription:

  • We can request your prescription for you! When you checkout, just let us know you would like us to request your prescription, or you can log into your account to have us request your prescription.
  • Fax your prescription to our toll-free fax number: 866.353.2727, or our international fax number: 713.541.7377
  • Email your prescription to cpap@cpap.com
  • Upload your prescription in your account, under the Prescriptions Section
  • Ask your doctor to fill out our prescription form. We have both a standard prescription form and an EPAP prescription form.


For more information on prescriptions, please see our Prescription Section of the Learning Center.


What is ramp?
The ramp button on a machine is a feature that allows for a gradual pressure build-up to your prescribed pressure. The feature is enjoyed by those with high pressures because it eases up to their pressure.
What is exhalation relief?
Exhalation relief is a comfort feature which reduces the air flow at the time of exhalation, making the breathing process more natural.

The following are the different types of exhalation relief names by manufacturer.

  • Philips Respironics = C-Flex, C-Flex+, A-Flex and Bi-Flex
  • Resmed = EPR (Expiratory Pressure Relief)
  • 3B Medical = RESlex
  • Apex Medical = PVA (Pressure Variation Algorithm) Pressure Relief
  • Curative Medical = EUT (Expiratory Unloading Technology)
  • DeVilbiss = SmartFlex
  • Fisher & Paykel = SensAwake Technology
  • Human Design Medical = Z-Breathe
  • Somnetics = EZEX

Here are some machines with an exhalation relief feature:

Transcend Auto miniCPAP™ Machine with EZEX
PR System One REMStar 60 Series Auto with Bluetooth
AirSense™ 10 AutoSet CPAP Machine with HumidAir™ Heated Humidifier
+ See More
What maintenance is required on machines?
The only care a CPAP, APAP or BiPAP machine requires is to clean or change the filters at the air intake. This keeps the internal parts from accumulating dust. Fine paper filters should be changed out every 30 days, or when they appear soiled. Foam washable filters should be rinsed with clear running water once a week, allowed to air dry, and reinserted.

Here are some other suggested actions to care for your machine:
  • Keep the area around your machine clean by removing any dust from the area to improve the air quality delivered to your machine and to you.
  • Keep the air intake of the machine unblocked. Curtains, bedding, and papers can easily block the air intake of your machine, reducing the airflow.
  • If a humidifier is used with your therapy, do not pick up the machine with the humidifier attached. With most machines it is easy to spill water from the humidifier chamber into the machine causing damage. Manufacturer warranties are voided by water damage to the machine. To avoid this, remove the chamber from the humidifier and then remove the humidifier from the machine rather than transporting them together.
  • If a humidifier is used, empty the water from the chamber every morning. Accidents happen. If a family pet or family member moves the machine and humidifier with water in the chamber it is more likely that water could be spilled into your machine. Water damage to a machine voids the manufacturer warranty.

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When you shop with us, we want you to be confident that you are receiving the best available price. If this items goes on sale or you spot an online or retail competitor with a lower price within seven days of your purchase, let us know, and we will credit you the difference.

"Super helpful, fast shipping, friendly assistance, great selection, I love this company."

- Verified Customer, 10/25/22

★★★★★

(18)  

Read Reviews

Compare Similar Products

Manufacturer
Fisher & Paykel
ResMed
React Health
Warranty
2 Years
2 Years
2 Years
Sound Level
30-dB
26.6 dBA
26 dBA
Quiet
-
Yes
Yes

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Customer Reviews

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★★★★★
4.8 18 Reviews
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★★★★★

Verified purchase | May. 04, 2012 | Verified CPAP.com Customer
This machine was an excellant choice. The only down side is the water chambers. They can not be disassembled for a propery cleaning. I'd reccomend the upgraded chamber, but you'd probably have to call that in when ordering.
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★★★★★

Sleep Style 604 CPAP Machine

Verified purchase | Mar. 11, 2011 | Verified CPAP.com Customer
The machine itself is an excellent choice. It is quiet and easy to set up. The only comment I have is: I have troouble removing the resevoir on the front. It is kind of hard to remove, but to put it in is a breeze. The funnel makes it easy to refill.
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★★★★★

SleepStyle 604

Verified purchase | Feb. 03, 2011 | Verified CPAP.com Customer
Excellent. I have one that I travel with and this one is for home. I have had the airlines lose my original one for several days at a time, so I bought this one to keep at home. Thanks for your help.
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★★★★★

Verified purchase | Feb. 04, 2010 | Verified CPAP.com Customer
Machine is quite good and completely eliminated the gurgling hose. It would be nice if instructions more clearly identified humidifier setting and hose heat controls. For improvement I would like to see more humidifier capacity and a lower hose temp setting available. Filling integral reservoir is a pain. I would like to see a fill spout I could insert a funnel in without removing the reservoir from the machine.
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★★★★★

Verified purchase | Jan. 05, 2010 | Verified CPAP.com Customer
This SleepStyle 604 is my second Pisher & Paykel CPAP. My SleepStyle 200 has worked beautifully for five years and it will be my travel CPAP. I upgraded to the heated hose and ThermoSmart humidifier to eliminate the annoyance of rain out. Hopefully, I will not be awakened a few times nightly to empty the condensed water from the hose on humid nights. I did not get the SleepStyle 608 with automatic altitude adjustment since my home CPAP will remain at sea level.
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★★★★★

Sleep Style 604

Verified purchase | Nov. 01, 2009 | Verified CPAP.com Customer
Very good result
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