[TheForge] Decibullz Custom Molded Earplugs and Earphones

[Rob Fertner]

>From the article towards the end:
"Decibullz also offers percussive filters, which allow you to hear normal
sounds but selectively block sound from guns, artillery, and other
percussive sounds. They do this by means of a tiny "valve" that instantly
closes when subject to high sound pressure.
Percussive filters do not receive an NRR rating because it's not a relevant
measure of the protection provided by this kind of device. NRR is the
average protection at all frequencies; percussive filters only protect
against rapid sound spikes at certain frequencies. I was told they should
provide protection for people using nail guns and jack hammers, but not for
something like a concrete saw, which produces a solid wave of sound."



-----Original Message-----
From: theforge-bounces at mailman.qth.net
[mailto:theforge-bounces at mailman.qth.net] On Behalf Of terry l. ridder
Sent: Friday, June 23, 2017 6:10 PM
To: Blacksmithing List Sponsored by ABANA
Subject: Re: [TheForge] Decibullz Custom Molded Earplugs and Earphones

hello Rob;

Looks interesting.
Would you know if the wearer is able to still hear conversations? i have had
several times while wearing the earplugs i use when using a chainsaw; that
is someone comes up to me and talks I cannot hear them.
The person may or may not realize this. most of the time i have to take the
ear plugs out to talk with the person.

I still have a pair of gun muffs that i use when grinding or using the chop
saw.

On Fri, 23 Jun 2017, Rob Fertner wrote:

> This is an interesting new product for hearing protection.
> It has a thermoplastic that softens in hot water and then allows you 
> to get a Custom fit in your ear.
> Check it out:
> http://toolguyd.com/decibullz-custom-molded-earplugs-and-earphones/
>
> Rob
> Wichita, KS
>

--
terry l. ridder ><>
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