At work, we had custom-molded in-ear 30dB unit made for us by CPE. The caveat was that if we lost them, we'd get one (1) set of replacements on the company. Beyond that we would have to pay for replacements. Seemed fair.
Within 3 months I managed to misplace my original set, so a replacement set was made. About a week later I found set #1 under the driver's seat in my truck. Now I have a set at home in my shop!
- If I'm doing extended work (several hours) with machinery running, I grab for these custom-molded protectors. They're a 10 on the sonic scale, about a 7.5 on long-term comfort.
- If I'm running an angle grinder for 10 minutes, I usually just grab my 3M H10A muffs. They perform a "10" on sonic attenuation, but are not as comfortable as the in-ears because they squeeze on my ears enough to pinch my safety glasses between my ear & head. That gets uncomfortable over time
Also:
- I have a pair of noise protection / audio earbuds (wired) that I found on line...the gel-foam seal provides 25dB reduction and I get music. I put my iPod in my back pocket and run the wire down my back (so it can't get caught up in machinery). If I'm in a "listen to music" mood, these are great. I'm not convinced that they provide the the 25dB attenuation that's advertised, so sometimes I'll put the 3M muffs over top. "Belt & suspenders"....
That's my story & I'm sticking to it!
I had to look up the CPE product. It looks interesting.
I agree with the comfort level long term with ear muffs. I use them with plugs in long term bad noise environments. They get downright painful and sweaty.
My hearing is something I think about quite a bit. I used to be quite an audiophile and my ears were an important tool. But, I also worked in loud environments before anyone thought about saving hearing. To be honest, growing up around farming, I thought all old men were nearly deaf. It took years before I realized that wasn't normal for everyone.
My ears started ringing years ago and I've been trying to slow the progression. The first ringing I noticed was after long days of driving those old tractors with the exhaust right at ear level. I didn't do anything. Quiet cabs came along and I noticed that turbo whine made my ears ring after a long day. I started trying to quiet some of the noise with cotton balls around that time. It helped a little. I also started to notice ringing from the other work. I had a couple factory jobs that made my ears ring every day. Air impacts around the shop were also brutal. Ear muffs were **** in those days. Some of the hard plastic was painful and the band/springs were junk. (Anyone use the headband trick in the old days?)
I have been using custom silicone for years. They are not cheap, but with custom fitting I use them more because they are comfortable.
I have three different sets and each operates a little differently.
There is a range of softness in the silicone which matters for the type of use in my situation. The ear canal depth and outer ear cavity fill are also part of the customization.
I use the bigger softer version for long term high pitch machinery stuff. The softer silicone absorbs some of that sound and the larger size helps block clangers. My largest set essentially fills the whole outer ear. The large size makes them harder to insert and they also tend to catch on stuff when I'm climbing around tight spots. They are difficult to keep in position when putting on tight helmets.
I use my medium soft, medium fill plugs most of the time. The do fairly well for most average stuff like yard work and shorter tool use. I keep that set with my work gear all the time.
The hardest silicone set is also a bit more compact. I can keep those in my pocket without a case. They also stay in place a little better. The noise control is different. The block quick percussion sounds well, but they conduct some bone vibration. I tend not to use these with long duration impact type tools.
One of my big challenges has been play time with helmets. Wind speed is nasty and airflow can create vibration. A majority of helmets come with large ear cavity openings that have little more than the outer shell over the ears. The design inherently feeds sound to the ears. The custom plugs helped a lot with helmets, but harder silicone also transmits bone and helmet vibration. I make soft foam inserts to fit the helmet ear cavities. I hold them in place with adhesive velcro. That allows me to pull the foam easier to shape it properly. The foam trick has helped a ton by holding ear plugs in place better and helping reduce the helmet noise feed.
The reason I mention the foam trick is because I've also started to make the foam inserts for ear muffs. I use the combination with silicone plugs when I'm doing the nasty clanger stuff all day. I.E. demolition hammer tuckpoint cleaning. That sound and vibration is like using an impact inside tractor rims. It doesn't take long before the ears start singing.
I know that was a bit long winded. In all reality, I don't even mind a little ear ringing. It's almost like white noise when I'm trying to sleep.
Sometimes it gives me an excuse to ignore nagging.
I'm mainly trying to protect my remaining hearing because I still have a choice. If I lose what's left, I'm stuck without many options.