Minimizing moisture shadows that obscure projected slides.
To overcome the problem of moisture obscuring projected slides that are enclosed in glass, a low-heat oven can be used to warm the slides before use. The ovens are relatively inexpensive and can effectively remove most if not all moisture from within the slides.
D001296:Audiovisual Aids; D011871:Radiology / Q000295:instrumentation / Q000379:methods*