Great customer service!
I misplaced my Clyn portable charging cord. I looked all-over the internet and could not find a replacement cord. I contacted Topcpapcleaner.com. They sent me a replacement cord. The cord itself looks like a C charger. However, the opening that connects to the charger is narrower than a C cord ,which holds the cord securely to the charging port. I love my Clyn portable c-pap device. I use it daily.