SleepStyle 234 CPAP Machine with Built-In Humidifier (DISCONTINUED)

Fisher & Paykel SleepStyle 234 CPAP Machine with Built-In Humidifier (DISCONTINUED)

4.75 Average Rating of 12 Reviews Read Reviews

Discontinued Item:

For Reference: Discontinued January 2018


Using a Heated Humidifier during CPAP Therapy is proven to improve therapy acceptance and compliance. The SleepStyle 234'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.

Two kinds of noise can annoy you and your sleeping partner during sleep therapy. There is the noise of the CPAP machine and the gurgling noise (rainout) that results from condensation forming in the air tube. The SleepStyle 234 addresses both issues. It operates very quietly and, with Ambient Tracking PLUS, it automatically adjusts the level of humidification to minimize rainout noise, from condensation in the system, while maximizing overall comfort levels.

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.

The SleepStyle 234 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.

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Product Information

  • Manufacturer Fisher & Paykel
  • In the Package SleepStyle 234 CPAP, Travel Bag, Starter Filter, 6-Foot Breathing Tube, Two Humidifier Chambers, Water Funnel, Users Manual, Power Cord, 2-Year Manufacturer's Warranty.
  • Part Number(s) HC234
  • HCPCS Code E0601
  • GTIN / UPC Code 09420012416001
  • Prescription Item Prescription required for the purchase of this item.

Physical Specifications

  • Size (Approx) CPAP with Humidifier = 10.8 x 6.7 x 5.5 inches
  • Weight (Approx) CPAP with Humidifier = 4.4 lbs

Performance Specifications

  • Therapy Modes CPAP
  • Pressure Range 4-20 CM H2O
  • Ramp 20 minutes
  • Ramp Start 4cm to CPAP Pressure
  • Sound Levels Average less than 30 dBA
  • Altitude Adjustment Manual 0 - 9000 Feet
  • Comfort Technology Ambient Tracking PLUS


  • Masks Compatible with all CPAP/BiPAP Masks
  • Tubing Compatible with all Standard & Performance CPAP Tubing.

Therapy Data & Compliance

  • Data Storage Total run hours, average compliance hours per night

Power Specifications

  • AC (Wall) Power 100-115V 220-240V; 50-60 Hz


Average Rating of
Total 12 Reviews
  • User

    Works great just like the one I use at home as use this in my RV
    Written by Steven Strange, 2017-09-30
  • Oh mama, it's good to have you back!

    I had the SLEEPSTYLE 230 for the last 4 years and it finally died after being used everyday consistently.It's been on 6 vacations which included one cruise to Bermuda. I don't know if everyone likes sleep therapy, but I love my C-Pap. I do not get the rest I need without it. So I was crushed when it failed and I woke up to the taste of electrical smoke. Thankfully I recently bought a Z1 travel C-Pap that I was able to use while waiting on delivery. I'm not a fan of the Z1, because it has that auto-pressure adjustment that is super annoying. I got the new SLEEPSTYLE 234 model was afraid it was going to have stupid upgrades, and not work as well as my 230, but sure enough, it worked great, just like the original. I sleep like a baby once again and all is right in the world.
    Written by Dan, 2015-07-07
  • Another HC 234 Machine for me

    I had used a Fisher & Paykal HC 234 machine since August 2006. It finally ceased operating in late September 2014. It had been very reliable and comfortable to use and its 8 year lifetime seemed excellent to me. Humidity here is always very low so a good heated vaporizer is a must. It also traveled easily. I was very satisfied with it so I replaced it with another HC 234.
    Written by GG, 2014-10-19
  • awesome machine

    I really enjoyed this machine a great deal. Recently it has started a water popping sound and it looks as though I need a new one. I adore this machine!
    Written by Roberta, 2014-09-05
  • Cpap machine

    Just love my new machine. Works fantastic and now getting a good nights sleep! Has so many parts with it too.
    Written by Debbie, 2014-08-01
  • The best

    I have used a sleepstyle 201 for 10 years and it has 288000 hours so well past time to replace it but I could not afford to till I found The Best place to order they had the best price. They told me when I called they had to call me back later and they did . I have been told many times by others we will call back and stay waiting for days. So the best price the best service the best for shipping your item when needed.
    Written by Donald, 2014-04-17
  • I love this machine

    This machine includes the humidifier, is 100% quiet, came calibrated, arrived fast, with a carry-on. It is a great price. I recommend it.
    Written by Janet C, 2014-03-19
  • SleepStyle 234 CPAP Machine Package with Built-In Humidifier

    I am very happy with this machine. It's quiet and works well. Much smaller than my old remstar pro. The only concern I have is that I can't pull the water tank out during the day like I did the old machine. don't know if that matters but always separated the old tank from the old machine to keep water vapor from going into the machine. I just put a "sippy" lid from a water bottle on the top.
    Written by C Miller, 2014-01-14
  • Quiet Machine

    It's a Quiet smaller machine than my old one.
    Written by Dusty, 2013-10-04
  • Excellent!!

    I have been using a C pap for years now, none have compared to the compact lightweight machine that this is. it has good pressure and is so quiet. I am very pleased.
    Written by big daddy, 2013-06-21
  • c-pap

    though being set at correct pressure, it seems a bit low. the tank is ackward to remove and reinsert into machine otherwise for the price its great.
    Written by nora, 2013-04-29
  • Long lasting quiet machine

    I've had my SleepStyle 234 CPAP Machine since July, 2007. It has never quit working. I think it is very quiet. I've tried different masks since I've had it. My personal favorites are the nasal pillows. I wouldn't trade my CPAP machine, unless it ever quits working, or I can't get supplies for it anymore.
    Written by Sherry B., 2012-10-13