oascom ...I have been doing all my work under a microscope for years. One thing I have found out, that I am sure you will see as well...cotton fibers, no matter how clean you keep your space, will find there way into everything! I have removed every shred of cloth from my work space, but I cannot make it like a clean room, and I find those pesky fibers in everything no matter how clean I keep my workspace. I never noticed when I worked under a loupe.