I've had one for several years. It's in my living room as an accent lamp/nightlight. The only time it isn't on is when the light bulb burns out. Buy this if you want a pretty lamp and not for the medical claims. I have migraines which they claim it will help. I wish I could say it has. Dust isn't a problem, it never really gets dusty. Wipe it off with a damp paper towel occasionally keeps it clean.