CPAP Bleed Air Silencer

thingiverse

I started using a ResMed 11 Cpap, but my biggest problem is the Bleed air hissing would keep me up in the middle of the night, I spent a few mouths developing and testing a clip on solution that is able to silence the bleed air almost completely wile providing even better airflow. It works by rerouting the bleed air into a chamber with a large piece of acoustic foam. Designed to attach between the elbow and F30 mask, to reroute the CPAP bleed air through a piece of acoustic foam, silencing noise wile providing more ventilation. You will need to find a piece of open cell acoustic foam approximately 40X40X20mm trouble shooting If the bleed air is still noisy then you may need a bigger piece of foam If you feel an uncomfortable pressure when exhaling, the foam piece may be too large, or the wrong type, or the mask guide is not twisted fully into position, or there is a defect in the 3D printed ports I don't know if this design will work with other mask style, but feel free to modify the idea to work for your setup. if you need any support ask in the comments, I will try to check in regularly.