What type of ear defenders do you wear on your helmet

[Brushcutter]

Do you have the model number/a link for those ear muffs? I can only find Sordin 31SNR

 

My apologies i have the 31 ones, I thought they were 34 apparently not after a quick google.

[openspaceman]

 

I think the safety glasses/chin straps make the defenders not fit well,

 

I think this bit is very significant, the glasses affect the seal, poor seal means a leakage path for sound and hence poor attenuation. I think this is why, despite wearing ear muffs from the beginning working with motor saws, I suffer from tinnitus.

[timbernut]

Pfanner protos 23 SNR ...my ears feel like bleeding every time I get busy with a saw or near a chipper if you forget your ear plugs.

Emailed them about an upgrade and nothing ...

 

 

Think you'll find the problem is they can't upgrade as if you enlarged them they won't tuck into the helmet, we use "fitted" earplugs under defenders when chipping.

[jrose]

I've looked on t'internet and got myself well and truly confused now...

 

What is the safe level of exposure to your ears? If I am using a 118db husky and wearing 25snr muffs, this means 93db is still reaching my ears, this seems a bir high still?

[TGB]

... "Spank Plugs" and over go the Huskys...

Oops! That should have been Spark Plugs. Spank - plug - and Husky's would be a different forum.

 

Well yes but no, signal to noise ratio is for broadcast

 

In the world of hearing protection it means...

 

I stand corrected by an interesting article and knowledgable fellow.

[Brushcutter]

I've looked on t'internet and got myself well and truly confused now...

 

What is the safe level of exposure to your ears? If I am using a 118db husky and wearing 25snr muffs, this means 93db is still reaching my ears, this seems a bir high still?

 

I think above 85db you have to wear ear protection.

 

The 118db saw might not be 118 all the time as think that is the theoretical maximum. Also its not right next to your ear so there will be some drop off.

 

If it is 93db getting to your ears i doubt you could use the saw for a full day without doing damage.

[BrendanTreeFeller]

I went for the Peltor class 5 on my Petzl Vertex climbing helmet - we're fine for a while but then found they are so bulky that the right hand one pops off when I tilt my head to that dude e.g. when cutting a branch! Kind of defeats the point doesn't it?

Agree with using in-ear plugs as well eg when using chipper but then it's a PITA to put them in & out, you lose them, they get dirty etc...

[BrendanTreeFeller]

*Tilt my head to that side!

[Brushcutter]

I went for the Peltor class 5 on my Petzl Vertex climbing helmet - we're fine for a while but then found they are so bulky that the right hand one pops off when I tilt my head to that dude e.g. when cutting a branch! Kind of defeats the point doesn't it?

Agree with using in-ear plugs as well eg when using chipper but then it's a PITA to put them in & out, you lose them, they get dirty etc...

 

I found what ever big defenders you put on the vertex one pops open.

[morten]

Mine are standard Husky defenders and so are rated at 26 SNR. But I also carry Moldex 'Spark Plugs', which are 35 SNR. If I'm around particularly noisy stuff or milling, in go the Spank Plugs and over go the Huskys. So the level of noise my ears will be exposed to, is reduced by around 61dB.

 

You can't just add db (decibel) values together like that, as it is a logarithmic scale, where a 3db increase corresponds to doubling the noise reduction (in this case). So 29db ear defenders are twice as good at blocking out noise as 26db defenders.

 

So if you add 35db plugs to 26db ear defenders you end up with a collective level of 35.5! See Adding acoustic levels

Edited October 26, 2014 by morten