I installed this unit as ventlesss. I had difficulty understanding the directions for installing the charcoal filter. I called GE service, explained my problem, and they sent a service representative at no cost to me. He found the directions to be incorrect, and showed me how to remove the front panel, and install the filter. This unit works great. I especially like the 'night light' feature. The controls are easy to use, and the inside is easy to clean.
- I recommend this product.