Welcome to the board from northwest Louisiana.

According to this, it looks like those are Spanish cedar lined. I mean, they could be lying to you, but then again, black helicopters could be watching you overhead.

Try this, though:
Get some distilled water. Wet a clean rag, and wipe down the inside of your humidor really good. Close, and open the next day. Does it have the cedar smell you are looking for? If not, look into making a coolerdor. You'll have much less worry going that route, anyway.