Respironics M Series R2 Heated Humidifier without Water Chamber

(46 reviews)
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This is a refurbished cleaned and tested Respironics M Series Generation Heated Humidifier. It comes with a new water chamber, and six month warranty. Please note that the M Series heated humidifier comes in two varieties, the R2 and R3 version, both of which work with all M Series Generation Respironics CPAP and BIPAP machines - such as the 100M, 200M, 400M, 500M, 510M, 600M, and 700M devices.

The R2 version can be identified by the squared opening on the water chamber, and the longer, pig-tail adapter, and the R3 version has the round ports on the water chamber, along with the shorter pig-tail adapter. Again, both iterations will work with all M Series devices.


R2 Series Available Only


Please check your current humidifier to make sure you purchase the correct model that will work with your current water chamber.


This product has been discontinued by Philips along with the M Series Water Chambers.


Water Chamber is not included.


  • 5
    Great job

    Posted by Ray Hoving on Dec 10th 2019

    The humidifier seemed like new and has extended the life of my CPAP significantly. You are doing a good service.

  • 5
    Product As Advertised

    Posted by Mark on Sep 30th 2019

    Reasonable price for replacement part. Exact part in working order. Saved me from having to jump through hoops to buy a whole new system.

  • 5
    Respironics M Series Heated Humidifier with Water Chamber

    Posted by Judy on May 23rd 2019

    I'm so glad to find you had the piece our daughter needed. I appreciate you sending this piece right out. Thank you so much!

  • 5
    Good Night's Sleep Again

    Posted by Unknown on Apr 12th 2019

    I'm back to having a full good night's sleep. My Bipap has a lot of miles on it. I know the product is no longer manufactured but when the humidifier quit working, my sleep stopped also. I'm still waiting to have a new sleep study and get a new machine. But now thanks to you guys I am sleeping restfully while I wait.

  • 5
    Excellent Service!

    Posted by Richard Bailey on Mar 26th 2019

    My order was shipped immediately and received earlier than expected. The product was exactly what I needed and very high quality; however, the water chamber had a small crack. I informed them of the problem and a replacement was sent out that day. I received it in three days. I am VERY satisfied and I have found a new reliable source for my supplies. Thank you very much!

  • 5
    Amazing service

    Posted by Michael S on Mar 25th 2019

    I was extremely satisfied with their speed, price, service and the fact they had a part for a device that is no longer available. It arrived before the estimated time and on top it worked perfectly. Thank you and I will buy from there again.

  • 5
    Very satisfied!

    Posted by Terry on Aug 14th 2018

    I was very satisfied with my experience . The mdse arrived in 2 days! I couldn't believe the fast shipping. The unit which was a refurbished unit looked like new and works as new!

  • 5

    Posted by JOHN on Jul 26th 2018

    Great price and quality. Works great. Thanks

  • 5
    Prompt and Precise

    Posted by Harry Mooney on Jun 20th 2018

    The re-furbished humidifier for my CPAP machine arrived in a timely manner and in great shape. Great price for a good product.