Have you ever used an ototek loop? Is it safe?

I’ve posted here before about my incredibly itchy ears, and I know it’s likely because I have too much wax. I’ve had that problem for years, but without having my ears flushed by a doctor, I was never able to really deal with it on my own.

But then I found this little doo-dad at the store called the ototek loop. Sounds freaking brilliant. Except it doesn’t seem like it’d be all that safe to me. I’m wondering if anyone could shed more light on it. I know it has a guard to be sure you can’t stick it too far into your ear, but still.