Here I go again,
I looked into humidity levels for the dry months of winter, especially up here in the mountains where it is cold throughout the winter and in home humidity drops to 20%. - Certainly lends to static electricity. I learned that the average humidity among electronics is 50% to 80%. I think 40% to 45% is sufficient.
More on the dust is that most good computer manufactures protect circuit boards with some type of protective coating against dust. However, this does not address my main concern which is the optical drive. Principally, the optical drive of my 15 disc duplicator. The best best is to e-mail Vinpower and find out.
Best of luck to you all and thanks for interacting with me. I’m going to enjoy this forum experience. 