QTube Universal InLine Muffler for CPAP Machines


QTube is a unique inline adapter that fits between your CPAP Machine and your breathing tube. A foam baffling layer inside the QTube reduces perceived sound levels and acoustic noises, that can often irritate sleep therapy users and disturb sleep partners, by up to 90%. It's the ideal accessory for a peaceful night's sleep!

The QTube CPAP Muffler is about 5 inches long and the whole kit only weighs about 3 ounces in use! It is easy to attach and detach from your sleep therapy device and, because QTube sits inline with your standard CPAP tube, it won't add a lot of clutter to your sleep therapy setup.

qtube for quiet cpap therapy

QTube is designed to work with all CPAP machines including those from Human Design Medical, Somnetics, Philips Respironics, ResMed, Fisher & Paykel, Devilbiss Healthcare, and more. QTube can be used with standard tubing, performance tubing and slim tubing; however because QTube needs to attach to your machine at the air outlet port, it cannot be used with most heated tubing systems.

QTube can be used with heated humidifiers as long as the QTube is disassembled each day and allowed to dry completely before the next use.

QTube attaches to your CPAP machine's outlet port via the included short tube. Together the QTube and short tube provide a lightweight, flexible, adaptive connection that won't kink or pull on your standard CPAP tubing or mask. QTube's foam baffle material should be replaced on a regular basis, usually once every 2 weeks. For full usage and care instructions please review the user manual that came with your QTube.


Product Information

  • Manufacturer HDM Breas
  • Part Number(s) HD60-2500, 005997
  • HCPCS Code E1399
  • GTIN / UPC Code 00859477004178
  • Country United States of America (Typical Origin)

Physical Specifications

  • Materials Not Made with Natural Rubber Latex


Average Rating of
Total 5 Reviews
  • Makes the Z1 tolerable

    I had to wear ear plugs to use the Z1 before I got this. Every time I exhaled it whistled annoyingly, and would even keep my spouse awake. Amazingly this simple tube with foam in it (which is of course WAY overpriced) minimizes that sound. The question is, why didn't they include this with the Z1 to begin with?
    Written by Bill, 2016-11-03
  • At low pressures, OK, but...

    In my experience, above 10cm H2O, forget it. A muffler at higher pressures? Don't think so. And BTW, despite it's wonderful portability, the Z1 is one noisy machine.
    Written by Cpap Sam, 2016-05-03
  • Reduces noise dramatically

    I've been using the Q-Tube for almost a year now and it does dramatically reduce the noise of my Z1 Auto. I use my Z1 Auto 4 out of 7 nights almost every week and the noise never bothered me but if my wife was with me she would complain. Using the Z1 Auto and Q-Tube feels just as comfortable to me as using my bedside unit. Having conversed via message board with folks over the last few years on the topic of Z1 noise, it is clear that there are some people who are just super sensitive to noise when they sleep and cannot tolerate the high speed blowers of the travel cpaps.
    Written by Bill-e, 2015-11-29
  • Wish it wasn't needed.

    I've used the Z1 with and without a muffler. When I'm at home I use the muffler and it helps. When I travel I don't and it's okay, but I wish it was quieter. I think the muffler does help with sound at the mask though.
    Written by Mark, 2015-10-29
  • Not so good

    Did not notice any noise reduction
    Written by SteveC, 2015-08-20