The Large, Slide Incubation Chamber is designed to keep immunoassays in a moist atmosphere and away from sun light. It is available with three lift-out trays capable of holding up to four standard (25 x 75mm) microscope slides. The slide capacity can be expanded to 16 by purchasing an additional slide tray, which conveniently fits in sequence next to the others. The smoked acrylic construction repels light and the sloped cover prevents condensation from dripping onto the slides. To use, place moist sponges or paper towels in the bottom of the chamber.