Product review (1 stars): Terrible product
Terrible product!! I'll give zero star if possible.
Control panel totally not working just after painful installation. Sent msg to customer service, let me call them next day and next day, nobody answered the call. I searched online and we're not alone.
I tried to open the control panel cover and take a look. Guess what I found. All screws are different! What a joke. Is this a real product? Really?

The efficiency of ventilation is also questionable. I smell the same upstairs after all.
But to disassemble such a huge stuff and send it back is another pain in the butt.
Anyway, regret to buy this junk.