Trend or Powercap?

[Paul.J]

So the TH2 is better for keeping the finer dust out :?: :?

 

[CHJ]

Not necessarily the finer dust Paul, its more to do with the masks ability to stop dust from being draw back into the mask for whatever reason.

 

[gasmansteve]

Not necessarily the finer dust Paul, its more to do with the masks ability to stop dust from being draw back into the mask for whatever reason.

Chas - So as the helmets battery starts to run down then its ability to keep dust out of the helmet decreases also?. This worries me as you might be involved turning something and not realise the filtration is failing or is there some audible indicator telling you this?
Cheers
Steve

 

[Paul.J]

Gasmansteve wrote

is there some audible indicator telling you this?

The only audible noise on the Trend is the sound of the airflow decreasing in power as the battery drains.

 

[brianhabby]

I notice that it starts to get stuffy in there when the battery gets low and I can start to feel my breath on the visor. It's quite easy to tell, you don't notice the noise so much because it's gradual.

When I bought my Trend I got two 4 hour batteries with it because you can put one on each side of the headpiece to give you 8 hours. However, I only ever put one at a time in there so there is always a fully charged one ready to change.

regards

Brian

 

[CHJ]

Chas - So as the helmets battery starts to run down then its ability to keep dust out of the helmet decreases also?. ......Steve

That's correct for most.

 

[TEP]

Found this spec. sheet it seems to explain the filtering differences needed for differing dust conditions.

 

[duncanh]

I recently bought the Powercap (from Screwfix - the cheapest I could find) and found it noisier than I was expecting. This is made worse by the fact that I usually wear ear defenders - the ones I have are now in contact with the helmet in the only position that they'll fit with the helmet (slung under my chin) and this transmits vibration.

The battery pack is on my belt and I've caught it a few times walking round the workshop, but then my workshop is tiny so you may not find this a problem.

I was alarmed at just how much dust was trapped on the filter and how often I'd have to replace them (at £15 per pair). I now put a sheet of tissue under the white plastic housing to act as a pre-filter. This gets clogged pretty quickly but can be replaced easily. The airflow meter still indicates that it's ok with this extra filter in place so it should be ok to use.

Duncan

 

[CHJ]

Found this spec. sheet it seems to explain the filtering differences needed for differing dust conditions.

More detailed info on breakdown of marking code is available HERE


Scroll down to EN 12941:1998 about a 3rd. of the way down.

 

[Gordon T]

Hello all,

I also have the old trend, with two batteries, and again using one at a time, works very well, and always keep one charged, I t weighs next to nothing,and feels as light as a feather, even after hours of wear. I can't comment on the other types, I have not tried them.

GT