I always heard this saying applied to your melon when talking about, say, riding a motorcycle. In this case, it’s something almost as important: your ears. You can pick up a pack of 200 Howard Leight LL1 Laser Lite cordless earplugs at Amazon for $20. Made of expandable foam and resembling stylish red-and-yellow rocket ships (hey, it’s cool), it’s worth 20 cents a pair for long-term hearing protection.
Research suggests you subject your tubes to no more than a maximum of 85 decibels for eight hours a day: that’s about the level of busy street traffic. But what about those who work in factories or warehouses, in construction or demolition, or in elementary teaching? Power tools easily run at 100-110 db; jack hammers at 120; a lawn mower at 90 db. (By the way, a sound 100 times louder than 10 db is 20 db. A sound 1,000 times louder than 10 db is 30 db, and so on.) I bet an elementary school kid can do at least 100 db.
With a maximum of 32 db noise reduction rating (NRR), these little plugs can turn your growling John Deere rider into a gentle purr — so you can enjoy sweet engine sounds into your golden years.