It’s important to limit your exposure to loud noise, both to protect your hearing and to guard against other possible health effects of noise. According to NIOSH, exposure to noise levels of 85 decibels (dBA) for more than 8 hours in a day may affect hearing—and the louder the noise, the less time it takes to cause harm.
For instance, a noise level of 100 dBA, similar to that of a car horn from a few feet away or a sporting event, can cause harm after just 15 minutes, according to NIOSH. (The car horn won’t last that long, but a football game certainly will.)
While you may not be able to move away from a noisy neighborhood or work in a quieter environment, consider these steps:
Wear hearing protection, such as earmuffs or earplugs, when you know you might be exposed to loud sounds (and put these on kids, too). That includes concerts and sporting events—where, Reed points out, fans are often encouraged to be as loud as possible—but also movie theaters and fireworks displays. Even a high-energy exercise class where the music is turned up to the max could enter the noise-level danger zone, Reed says—in that case, try asking the class instructor to turn the music down, or wear earplugs.
Check your workplace. If you’re exposed to loud or prolonged noise at work, your employer should provide hearing protection. But according to NIOSH, they should also be working to eliminate or replace noisy equipment, to keep sources of noise away from employees, or to limit people’s time exposed to dangerous noises. For more information on the recommended actions employers should take to protect workers’ hearing, go to the NIOSH website.
Limit your exposure to loud noises around your home, especially from outdoor power equipment. Lawn mowers, snow blowers, string trimmers, and other power tools can reach noise levels high enough that if you use them for 15 minutes or half an hour, they could cause hearing damage. Make sure you have hearing protection on when you use these tools.
Take care with headphones. CR recommends the 60/60 rule: Listen at no more than 60 percent of the maximum volume for no more than 60 minutes per day. Kids and teens should heed this rule, too—the CDC says that as many as 12.5 percent of kids and teens ages 6 to 19 have already incurred some damage to their hearing.