When choosing fume hoods first ask if you are protecting products, personnel or both? If you need to protect products, you'll need a vertical or horizontal clean bench or a PCR enclosure. When protecting personnel, if a chemical is being used, a ducted or ductless chemical hood or a fume extractor will be required. When using powders, a vented enclosure or fume extractor is required. When using biologicals, a Class 1 biosafety cabinet is needed. When protecting products and personnel, a Class II biosafety cabinet is required. In addition to fume hoods and fume extractors, Cole-Parmer has a large selection of laboratory funiture and stainless steel tables. Cole-Parmer features Thermo Fisher Hamilton furniture that includes sitting- and standing-height wall assemblies with sinks or fume hoods, islands with end sinks, and storage cabinets.