I did some research and the smell is an indicator that this works!
I purchased this product out of curiosity.  As per research, one indicator if the UV light works is the smell (sterilization smell). It definitely has that smell and I think that this gadget works. Although the exposure time for the drawers (I suspected may have dust mites) was short, I noticed that the family member who uses these drawers no longer suffer from skin itching. With these two indicators, I think it works. If anything changes, I will update this review.  I like that the UV light has a delayed system mechanism to ensure you are not near the light before it turns on and it automatically shuts down.
Rating: 5 stars