Exhaust fan vent covers can be purchased in stores or online through home supply and hardware chains such as Home Depot or Lowe's, as well as through online mass retailers such as Amazon and Internet auction sites such as eBay. Some manufacturers also sell replacement parts on their websites.
Home Depot allows users to browse its complete collection of exhaust fan parts and units on its website. Each listing contains a picture of the item, a description of its features and details about what models with which it is compatible. Listings also contain reviews written by customers explaining their experiences with the item. Users have the option to order the exhaust fan vents directly through the site or check to see which nearby stores currently have the item in stock. If a store does have the item, users can request an in-store pickup at that location.
Manufacturers such as Broan allow customers to search for replacement parts through its site in two ways: by searching the fan's model number for the specific part number. The site also contains a catalogue that users can look through manually. Once the part is located, users can order the part from the site or call a customer service representative to place a telephone order.