
I change tubes and filters more frequently than stated due to numerous issues over the life of this unit which I will not have I will discuss here. When I changed the tube, I noticed dark debris inside the tube and decided to cut it open for inspection. I have no idea what's in the tube and my family and I have been swallowing it for who knows how long. This is absolutely disgusting and unacceptable. I will never buy another APEC product again.

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