An extraction canopy is a critical component in a commercial kitchen. Made out of stainless steel for easy cleaning, these devices are more than fume hoods. They remove heat from the area, filter out grease particles and contaminants, and potentially add light to the room. However, when choosing one, buyers need to decide some factors other than size and space considerations. Extraction hoods use mesh filters, drip trays, and condensation rails to remove contaminants from the kitchen air, but users have a choice between disposable mesh filters and washable aluminium filters. The lighting in a canopy can use surface-mounted lights, recessed incandescent bulbs, or florescent lighting, each having their positive and negative aspects. A number of extraction canopies are available on eBay, both for light loads covering steamers and oven areas as well as medium load types that work over fryers, ranges, and broilers. Like any other appliance in a commercial kitchen, you want to buy one with the best options for your work.