Engineered nanomaterials (ENMs) are materials that are intentionally produced to have at least one primary dimension less than 100 nanometers. These materials have new or unique properties different from those of larger forms of the same material, making them desirable for specific product applications. These properties can contribute to increased elasticity, tensile strength, electrical conduction, and reactivity. Consumer products using nanomaterials include makeup, sunscreen, food storage products, appliances, clothing, electronics, computers, sporting goods, and coatings. The health effects associated with the wide variety of ENMs are not yet clearly understood, so it is important for producers and users of engineered nanomaterials to reduce employee exposure and manage risks appropriately. NIOSH has been at
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