Facility manufactures over 600 small animal products, including bird food, but not dog and cat food, which are sold in small and large chain pet stores. Fifty to 60 employees work in its 120,000 square foot production facility and warehouse. Part of the facility, measuring 8,000 to 10,000 square feet, is devoted to assembling small animal products from 2500 types of raw materials, including millet seeds, milo, safflower seeds, sunflower seeds, corn, wheat, oats, papaya, pineapple, flaked peas, raisins, dates, corn flakes, banana chips, flower petals, and poppy seeds. Adjacent to this assembly room, located on an outside corner of the first floor of the facility, is the “dust room,” which is the focus of this case. In another part of this facility, located away from the dust room, is the “hay room,” which is devoted to hay-related products. The hay room is about 1500 square feet and was the focus of a previous OSHA inspection in 2008.