I have a SoClean and it does make the mask seem clean if you go by smell. And I don’t mean it has no odor, there is a clean non fragrant smell when you first put it on after the cleaning.
I will say that it seems like my allergies and stuffiness has gotten a little better.
On the other hand that brownish red color the mask gets over time is still there.
I think my biggest complaint is the coiling around the tube near the mask has loosened from repeatedly putting the mask in the device. It hasn’t put a hole in the tube, yet, but now if my house is positioned certain way it restricts the air. I don’t know if there is a way to prevent this. It happens because there is a seal where you put the hose in and close the lid.
I used my HSA money so I had the illusion of getting it for free.
Despite the cons I would still recommend one. It keeps it far cleaner than when I was doing things by hand.