Noise-induced hearing loss starts silently. By the time a farmer or those around him or her, notice a hearing impairment, the damage may be permanent, said John Slocombe, farm safety specialist with Kansas State University Research and Extension. Hearing loss is caused by both volume and the length exposure to loud noises.

On the farm, exposure to engine noise, loud animals or power tool motors can damage hearing in about two hours unless some type of hearing protection is used. Hearing protection decreases the intensity of sound that reaches the ear drum.

Slocombe offered these tips for saving farmers' hearing:

* Try to control sounds around you. Keep machine parts well lubricated. Replace worn, loose or unbalanced chains, belts and other moving parts. Exchange faulty mufflers and whenever possible, use machines with cabs and keep windows closed.

* Reduce exposure to noise. Earmuffs and ear plugs block dangerous noises but still allow you to hear. Look for hearing protection with a noise reduction rating (NRR) of 25 or higher. If you already have hearing loss, you may want a slightly lower rating. Choose comfortable, easy to wear protection so you won't have that as an excuse for not using it. Always read the label and follow directions for proper use. An added benefit is you will feel much less fatigued at the end of the day.

Farmers who think they might have hearing loss should be examined by a certified audiologist. An audiologist can determine the amount and severity of hearing loss, if any. Because farmers are continually exposed to hazardous noises, they should have their hearing tested regularly, Slocombe said.

From The Kansan