, clear polycarbonate doors with stainless steel piano hinges anodized aluminum air relief grilles. Construction can be stainless steel, powder coated steel, polypropylene, or plastic.... Polycarbonate Dessicators & Dry Boxes Preserves moisture-sensitive wafers in a dry, particle-free environment. Automated nitrogen controls maintain user-selected humidity level... Door Operators. Static Dissipative Construction. Special Finishes. Electrical Door Locks. Tinted Acrylic Doors. Custom Sizes. Powder Weighing Station Hepa Filtration Fume Hood...

and are generally less invasive than portable particle counters. Some operations can generate high levels of product (e.g., powder) particles that, by their nature, do not pose a risk... into a classified room. D. Air Filtration 1. Membrane A compressed gas should be of appropriate purity (e.g., free from oil) and its microbiological and particle quality after filtration should...