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Re: [Shop-talk] Hearing protection for mowing

To: Brad Kahler <bkahler1@gmail.com>, Shop Talk <shop-talk@autox.team.net>
Subject: Re: [Shop-talk] Hearing protection for mowing
From: Jim Stone via Shop-talk <shop-talk@autox.team.net>
Date: Wed, 29 May 2019 18:39:36 -0400
Delivered-to: mharc@autox.team.net
Delivered-to: shop-talk@autox.team.net
References: <CADm3DLH+ozmRNhQxxv52afaroMz8B5dpRgwsHK4nCTcT5W0H7Q@mail.gmail.com> <CANuE7YD=R49g1dUu+vjb5ztND=k5nZ_5g9f-j8J9+1wb1dw0Fg@mail.gmail.com> <4c7096a2-1bba-f080-07e2-70114ef185b6@earthlink.net> <CADm3DLH2njyT9zuM+78S51r+iivRRm_CE+hDOg+7+sTuMWbd5w@mail.gmail.com>
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"While I'd love to have a pair of Bose Quiet Comfort 20=E2=80=A6=E2=80=9D

Just for what its worth, I am on my third set of the Bose QC20=E2=80=99s =
and could not live without them.  They work incredibly well, but I =
don=E2=80=99t know if they qualify as hearing protection.  As I =
understand it, they work by generating anti-noise: the opposite wave =
length of the noise coming in.  While what you can hear is greatly =
diminished - they are awesome on airplanes and in hotels with noisy HVAC =
systems - I wonder if they actually prevent hearing damage.   It would =
be nice to know if they do qualify, or if noise+anti-noise is still =
damaging to the ears, even if you can=E2=80=99t actually perceive it.  =
Does anyone here know? =20



--Apple-Mail=_0A124922-55C8-40AC-BD9C-B8503212930B
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><font=
 color=3D"#0432ff" class=3D"">"While I'd love to have a pair =
of&nbsp;Bose Quiet Comfort 20=E2=80=A6=E2=80=9D</font><div class=3D""><br =
class=3D""></div><div class=3D"">Just for what its worth, I am on my =
third set of the Bose QC20=E2=80=99s and could not live without them. =
&nbsp;They work incredibly well, but I don=E2=80=99t know if they =
qualify as hearing protection. &nbsp;As I understand it, they work by =
generating anti-noise: the opposite wave length of the noise coming in. =
&nbsp;While what you can hear is greatly diminished - they are awesome =
on airplanes and in hotels with noisy HVAC systems - I wonder if they =
actually prevent hearing damage. &nbsp; It would be nice to know if they =
do qualify, or if noise+anti-noise is still damaging to the ears, even =
if you can=E2=80=99t actually perceive it. &nbsp;Does anyone here know? =
&nbsp;</div><div class=3D""><div><br class=3D""></div><br =
class=3D""></div></body></html>=

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