Free Publications
All our publications are available online. Click on any title to read that publication on our website. You can download a PDF or order a print copy of some publications.
Hearing Protectors
Information and resources about hearing protectors, including what they are, why they are important, and when they should be used.
Hearing Protectors for a Noisy Planet
Information about when to use hearing protectors, how to help children use hearing protectors, and what to know about different types of hearing protection.
Hoarseness
Information and resources about hoarseness, including how our voice works, when you should see a doctor for diagnosis and treatment of hoarseness, its causes, and current research.
How Do We Hear?
This fact sheet describes how our ear changes sound waves in the air into electrical signals and then transmits these signals to the brain, allowing us to hear sounds.
How Does Noise Damage Your Hearing?
Information concerning how we hear; the signs, symptoms, and causes of noise-induced hearing loss; and how you can help children and preteens protect their hearing.