3 ms·

Any teardowns? Everyone fixing electronics/cars knows about foam crumbling to dust with age/external factors like heat.

by rasz 4y ago

cjrp 4y ago
> If the sound-dampening foam in the devices made contact with certain cleaning materials I wonder if "cleaning materials" means a chemical, like a spray, or something different.
- petejansson 4y ago
  A few years ago, there were a number of devices that came on the market that essentially blew ozone through the airflow pathways in PAP devices, and this was supposed to be a substitute for disassembly and scrubbing (which is a lot less convenient). While nobody has said these devices and the ozone methods actually damaged the foam, replacement PAP units all are not warranted if ozone cleaning devices are used. I don't know if this is the only "cleaning material" to which the article refers.
- AwaAwa 4y ago
  Ozone or active oxygen from what I can gather
- jaclaz 4y ago
  Very likely some cleaners also have some solvent, though there is an explicit warning about UV and ozone[1] sanitizing: https://www.fda.gov/medical-devices/safety-communications/certain-philips-respironics-ventilators-bipap-and-cpap-machines-recalled-due-potential-health-risks https://www.fda.gov/medical-devices/safety-communications/ce... https://www.fda.gov/medical-devices/safety-communications/update-certain-philips-respironics-ventilators-bipap-machines-and-cpap-machines-recalled-due https://www.fda.gov/medical-devices/safety-communications/up... but I believe that more than anything else is the quality of this PE-PUR foam that is lacking. [1] ozone sanitizing treatments have been found to damage a lot of materials (besides metal which oxidizes very quickly also rubbers) and actually ozone chambers are used to test rubber materials durability
kotaKat 4y ago
https://www.amazon.com/Filter-Infusion-Line-Filters-Blocking/dp/B09MFFMLVQ https://www.amazon.com/Filter-Infusion-Line-Filters-Blocking... The best thing is that third party manufacturers are making their own replacement parts for people to DIY repair their own machines and just have zero sound-deadening foam in them. I'm in the recall, I refuse to use the reworked unit they sent me because it's a goddamn used CPAP first and foremost in the age of COVID -- I reworked my own machine instead. It wasn't a bad replacement project, I took my time - the sellers even provide in some of the kits all the tools you need, full color booklets, and video guides on Youtube on how to crack them open and swap it out.

Any teardowns? Everyone fixing electronics/cars knows about foam crumbling to dust with age/external factors like heat.

by rasz 4y ago

Any teardowns? Everyone fixing electronics/cars knows about foam crumbling to dust with age/external factors like heat.

cjrp 4y ago

> If the sound-dampening foam in the devices made contact with certain cleaning materials I wonder if "cleaning materials" means a chemical, like a spray, or something different.

petejansson 4y ago
A few years ago, there were a number of devices that came on the market that essentially blew ozone through the airflow pathways in PAP devices, and this was supposed to be a substitute for disassembly and scrubbing (which is a lot less convenient). While nobody has said these devices and the ozone methods actually damaged the foam, replacement PAP units all are not warranted if ozone cleaning devices are used. I don't know if this is the only "cleaning material" to which the article refers.
AwaAwa 4y ago
Ozone or active oxygen from what I can gather
jaclaz 4y ago
Very likely some cleaners also have some solvent, though there is an explicit warning about UV and ozone[1] sanitizing: https://www.fda.gov/medical-devices/safety-communications/certain-philips-respironics-ventilators-bipap-and-cpap-machines-recalled-due-potential-health-risks https://www.fda.gov/medical-devices/safety-communications/ce... https://www.fda.gov/medical-devices/safety-communications/update-certain-philips-respironics-ventilators-bipap-machines-and-cpap-machines-recalled-due https://www.fda.gov/medical-devices/safety-communications/up... but I believe that more than anything else is the quality of this PE-PUR foam that is lacking. [1] ozone sanitizing treatments have been found to damage a lot of materials (besides metal which oxidizes very quickly also rubbers) and actually ozone chambers are used to test rubber materials durability

kotaKat 4y ago

https://www.amazon.com/Filter-Infusion-Line-Filters-Blocking/dp/B09MFFMLVQ https://www.amazon.com/Filter-Infusion-Line-Filters-Blocking... The best thing is that third party manufacturers are making their own replacement parts for people to DIY repair their own machines and just have zero sound-deadening foam in them. I'm in the recall, I refuse to use the reworked unit they sent me because it's a goddamn used CPAP first and foremost in the age of COVID -- I reworked my own machine instead. It wasn't a bad replacement project, I took my time - the sellers even provide in some of the kits all the tools you need, full color booklets, and video guides on Youtube on how to crack them open and swap it out.