Thread: powered face shield

Originally Posted by delbs

They are absolutely. But due to a sinus infection earlier this year (maybe covid that didn’t test correctly) I’ve already lost my taste which is slowly coming back but my sense of smell is non existence atm.

I don’t want wood dust to make it worse since I’ll be going to an ENT specialist in the new year. Since I can’t get a proper dusty setup for a while this is the best I can do to do it needs to be comfortable and good at its job.

I’d be keen to hear about those other units also

losing your sense of taste is pretty much standard with covid, I got mine back in 2-3 weeks but my wife it took 3-4 months

Given that the Powercap is keeping you safe, are you are thinking a 2hp DC will just reduce the shop cleanup time?
(Question for Jaybird - sorry)

Originally Posted by qwertyu

Also, the faceshield ... isn't sealed .. to ensure positive pressure, you are just pumping fresh air into the area.

Had a look at my Versaflo and it has lots of gaps...

Versaflo side.jpg Versaflo back.jpg Versaflo top.jpg

3M would have done lots of lab tests to ensure that positive pressure would be maintained and that external air wasn't being drawn in, well that should have for the price they charge!!!!

The curtain under the chin extends up the sides to the headband and blocks the air going in or out there and the filtered air that enters at the top of the forehead flows down over the face and returns up and over the head to exhaust out the large gaps at the top and back of the hood. It may look a bit space age but it's not a complicated design.

PS - And for those who don't mind some noise in the hood, I cant see why something like my previous post could be combined to give give an all-in-one solution at a greatly reduced price.

Originally Posted by NeilS

PS - And for those who don't mind some noise in the hood, I can't see why something like my previous post could be combined to give give an all-in-one solution at a greatly reduced price.

Something like this...

Mask plus HEPA fan filter idea.jpg or Mask plus HEPA filter fan sideways.jpg

Originally Posted by NeilS

Digitech desktop air purifier.jpg Digitech desktop air purifier.jpg

However, unfortunately for me, the gassing off from the LI-ion battery inside the unit was too unpleasant for me to use. The TVOC reading on the counter is below the recommended 0.3 mg/m3, but I'm very sensitive to any elevated levels of VOC and couldn't cope with it at that level.

I did attempt to separate the battery from the unit to see if I could get around that problem, but that defeated me the way it was constructed. I might return to that challenge another time, but perhaps someone else might like to have a go at something similar.

I got back to separating the battery from the unit and found that it wasn't the battery that was gassing off but either the fan motor or the circuit board. So, neither of those components can be separated from the unit.

If anyone is thinking about this particular unit for an application like this I suggest you test your tolerance for the gassing off VOCs before buying. I don't think it would be an issue if used as a desktop/bedside air purifier, but if all you are breathing is the exhaust directly from the unit it could be an issue for you.

There may be other rechargeable units that don't have this issue.

hmmmmmmmm maybe you need to do a trial production line!

Originally Posted by brainstrust

hmmmmmmmm maybe you need to do a trial production line!

Nah... just playing around with ideas and putting them out there in case someone else might want to run with it...

Trend Airshield Pro Black | 017000140713 | Cash Converters

Hi,
I know of two people who have both the JSP Powercap and the Trend Airshield. One is a professional chainsaw carver and the other a member of our woodturning club. Both prefer the JSP. Both work OK but they find that the JSP is the more comfortable one to wear for extended periods. One is bearded and finds that the fit for the JSP still works fine.
I agree that they are not cheap. I'd like to get one but considering that they are both double the price of my mini lathe, its a bit hard to justify.
Cheers,
Guy