Brake dust is potentially hazardous because it may contain which substance?

Prepare for the Automotive Service Technician Period 1 exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Brake dust may be hazardous because it can contain asbestos, a material used in older brake linings. When brakes wear, asbestos fibers can become airborne in the dust and be inhaled. Inhaling asbestos fibers can lead to serious health issues such as asbestosis, lung cancer, and mesothelioma. Because of this risk, avoid dry sweeping or brushing brake dust; dampen the area and use a damp cloth or a HEPA-filter vacuum, and wear appropriate respiratory protection when inspecting or cleaning brakes. Modern brakes generally do not use asbestos, but older vehicles may, so treat brake dust as potentially hazardous.