Ir filtration system - any recommendations?
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Subject Author Date
Ir filtration system - any recommendations? Kris Krieger 06-18-2008
Posted by on June 21, 2008, 1:40 pm
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On Jun 20, 5:56 pm, den...@debrady.com wrote:
>
>
>
> > wrote:
>
>
> > >>> Hi, ALl, I was wondering whether anyone is familiar with air-
> > >>> filtration/fume hood type systems suitble for a very small in-home
> > >>> glassworking bench. Best would be somehting that coudl be lifted
> > >>> onto
> > >> the
> > >>> working surface during soldering/grinding (tho' I intend to do most
> > >>> of my grinding outside, as I have a covered porch), then lifted off
> > >>> and moved when I'm either scoring glass, or using the table for some
> > >>> other purpose.
>
> > >>> TIA!
>
> > >>> - Kris
>
> > >> Hakko makes a good fume trap and if you have a way to vent the air
> > >> outside you could juririg a stove top exhaust. It's the fumes from the
> > >> flux that you need to vent away not from grinding unless you are
> > >> grinding dry.
>
> > >Thanks, I'm looking up their info :)
>
> > >((I'm trying to decide whether I should go for a fume hood or fume
> > >collector, or whether I could get away with turning my Miele on and wiring
> > >the nozzle to the desk (it has a HEPA filter and I can get either super-
> > >filter bags, or HEPA bags for "double filtering"), or whether I should get
> > >a window fan (pointed outdoors) and rig up a duct. Or maybe just get a
> > >small folding table and chair and do it outside before the day heats up too
> > >much ;) ))
>
> > >- Kris
>
> > One thing to consider is that HEPA stands for (more or less) "High
> > Efficiency Particulate Air" filter. The key word here is
> > "particulate". Although they are very good at trapping very tiny
> > particles, there is a lot of non-particulate stuff (fumes) that are
> > released during soldering. HEPA won't do squat about those.
>
> > Like Chemo noted, you need a fume trap (does Hakko make one big enough
> > for sg work? I only know of their electronics stations). A homemade
> > fume hood using a stove hood and venting *outside* would be much
> > better than any filtration system. Just extend the sides of the hood
> > down further towards your bench.
>
> > Of course, there are advantages for good air filtering as well, but
> > ridding a shop of fumes ain't one of them.
>
> > Joe
>
> HEPA filters are great for filtering out dust and such but are pretty
> much useless for removing aerosolled flux fumes. This can be easily
> demonstrated by placing a piece of cloth or paper towel over the
> exhaust - which will expediently dampen from the condensed flux.
>
> Use filters to remove dust. Exhaust to outside to remove noxious
> fumes.


Below is a link to the Hakko fume extractor. It explains the filters
used. These are the same type of filters that are used in the
Honeywell 17250 HEPA air cleaner that I liked to in my earlier post.


http://72.14.205.104/search?q=cache:HePBzXQf9r0J:www.emsco-usa.com/hakko/hj3100.htm+hakko+fume+extractor&hl=en&ct=clnk&cd=4&gl=us&client=firefox-a

Posted by Kris Krieger on June 25, 2008, 4:01 pm
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VRforSg@gmail.com wrote in

> On Jun 20, 5:56 pm, den...@debrady.com wrote:
>>
>>
>>
>> > wrote:
>>
>> > >com:
>>
>> > >>> Hi, ALl, I was wondering whether anyone is familiar with air-
>> > >>> filtration/fume hood type systems suitble for a very small
>> > >>> in-home glassworking bench. Best would be somehting that coudl
>> > >>> be lifted onto
>> > >> the
>> > >>> working surface during soldering/grinding (tho' I intend to do
>> > >>> most of my grinding outside, as I have a covered porch), then
>> > >>> lifted off and moved when I'm either scoring glass, or using
>> > >>> the table for some other purpose.
>>
>> > >>> TIA!
>>
>> > >>> - Kris
>>
>> > >> Hakko makes a good fume trap and if you have a way to vent the
>> > >> air outside you could juririg a stove top exhaust. It's the
>> > >> fumes from the flux that you need to vent away not from grinding
>> > >> unless you are grinding dry.
>>
>> > >Thanks, I'm looking up their info :)
>>
>> > >((I'm trying to decide whether I should go for a fume hood or fume
>> > >collector, or whether I could get away with turning my Miele on
>> > >and wiring the nozzle to the desk (it has a HEPA filter and I can
>> > >get either super- filter bags, or HEPA bags for "double
>> > >filtering"), or whether I should get a window fan (pointed
>> > >outdoors) and rig up a duct. Or maybe just get a small folding
>> > >table and chair and do it outside before the day heats up too
>> > >much ;) ))
>>
>> > >- Kris
>>
>> > One thing to consider is that HEPA stands for (more or less) "High
>> > Efficiency Particulate Air" filter. The key word here is
>> > "particulate". Although they are very good at trapping very tiny
>> > particles, there is a lot of non-particulate stuff (fumes) that are
>> > released during soldering. HEPA won't do squat about those.
>>
>> > Like Chemo noted, you need a fume trap (does Hakko make one big
>> > enough for sg work? I only know of their electronics stations). A
>> > homemade fume hood using a stove hood and venting *outside* would
>> > be much better than any filtration system. Just extend the sides of
>> > the hood down further towards your bench.
>>
>> > Of course, there are advantages for good air filtering as well, but
>> > ridding a shop of fumes ain't one of them.
>>
>> > Joe
>>
>> HEPA filters are great for filtering out dust and such but are pretty
>> much useless for removing aerosolled flux fumes. This can be easily
>> demonstrated by placing a piece of cloth or paper towel over the
>> exhaust - which will expediently dampen from the condensed flux.
>>
>> Use filters to remove dust. Exhaust to outside to remove noxious
>> fumes.
>
>
> Below is a link to the Hakko fume extractor. It explains the filters
> used. These are the same type of filters that are used in the
> Honeywell 17250 HEPA air cleaner that I liked to in my earlier post.
>
>
> http://72.14.205.104/search?q=cache:HePBzXQf9r0J:www.emsco-usa.com/hakk
> o/hj3100.htm+hakko+fume+extractor&hl=en&ct=clnk&cd=4&gl=us&client=firef
> ox-a
>

Educational, esp. the link to the page explaining the filtration - that
explained a lot. This definitely is an item to keep in mind (and budget
for ;) ).

Thanks!

- Kris

Posted by Kris Krieger on June 25, 2008, 2:23 pm
Please log in for more thread options

> wrote:
>
>>
>>>> Hi, ALl, I was wondering whether anyone is familiar with air-
>>>> filtration/fume hood type systems suitble for a very small in-home
>>>> glassworking bench.  Best would be somehting that coudl be lifted
>>>> onto
>>> the
>>>> working surface during soldering/grinding (tho' I intend to do most
>>>> of my grinding outside, as I have a covered porch), then lifted off
>>>> and moved when I'm either scoring glass, or using the table for
>>>> some other purpose.
>>>>
>>>> TIA!
>>>>
>>>> - Kris
>>>
>>> Hakko makes a good fume trap and if you have a way to vent the air
>>> outside you could juririg a stove top exhaust. It's the fumes from
>>> the flux that you need to vent away not from grinding unless you are
>>> grinding dry.
>>>
>>
>>Thanks, I'm looking up their info :)
>>
>>((I'm trying to decide whether I should go for a fume hood or fume
>>collector, or whether I could get away with turning my Miele on and
>>wiring the nozzle to the desk (it has a HEPA filter and I can get
>>either super- filter bags, or HEPA bags for "double filtering"), or
>>whether I should get a window fan (pointed outdoors) and rig up a
>>duct. Or maybe just get a small folding table and chair and do it
>>outside before the day heats up too much ;) ))
>>
>>- Kris
>
> One thing to consider is that HEPA stands for (more or less) "High
> Efficiency Particulate Air" filter. The key word here is
> "particulate". Although they are very good at trapping very tiny
> particles, there is a lot of non-particulate stuff (fumes) that are
> released during soldering. HEPA won't do squat about those.
>
> Like Chemo noted, you need a fume trap (does Hakko make one big enough
> for sg work? I only know of their electronics stations). A homemade
> fume hood using a stove hood and venting *outside* would be much
> better than any filtration system. Just extend the sides of the hood
> down further towards your bench.
>
> Of course, there are advantages for good air filtering as well, but
> ridding a shop of fumes ain't one of them.
>
> Joe
>

Oh, OK - so the main thing is venting to the outside. My desk (I'm just
starting out) is right in front of a douple window, so maybe I should rig
up a vent (rather than leaving the whole window open to the Houston
heat'n'humidity ;) ) that'd funnel air the 18" or so from the desk to the
window, maybe put a particualte filter up-front so the fan doesn't get
all clogged up.

I can't go too expensive so, if it seems like I'm lookng for inexpensive
solutions, it's becasue I am <G!> At the same time, I don't want to
ignore safety. So far, I'm doing granding and soldering outdoors, but
it's a bit warm right now ;) ((I'd looked at a few soldering-station
units, but all they seem to have is a charcoal filter, so I didn't get
any of those.))

Thanks for the info! -

- Kris




Posted by Kris Krieger on June 25, 2008, 2:16 pm
Please log in for more thread options
dennis@debrady.com wrote in

>> om:
>>
>>
>>
>> >> Hi, ALl, I was wondering whether anyone is familiar with air-
>> >> filtration/fume hood type systems suitble for a very small in-home
>> >> glassworking bench. Best would be somehting that coudl be lifted
>> >> onto
>> > the
>> >> working surface during soldering/grinding (tho' I intend to do
>> >> most of my grinding outside, as I have a covered porch), then
>> >> lifted off and moved when I'm either scoring glass, or using the
>> >> table for some other purpose.
>>
>> >> TIA!
>>
>> >> - Kris
>>
>> > Hakko makes a good fume trap and if you have a way to vent the air
>> > outside you could juririg a stove top exhaust. It's the fumes from
>> > the flux that you need to vent away not from grinding unless you
>> > are grinding dry.
>>
>> Thanks, I'm looking up their info :)
>>
>> ((I'm trying to decide whether I should go for a fume hood or fume
>> collector, or whether I could get away with turning my Miele on and
>> wiring the nozzle to the desk (it has a HEPA filter and I can get
>> either super- filter bags, or HEPA bags for "double filtering"), or
>> whether I should get a window fan (pointed outdoors) and rig up a
>> duct. Or maybe just get a small folding table and chair and do it
>> outside before the day heats up too much ;) ))
>>
>> - Kris
>
> In calculating fan capacity for fume exhaust there are type A and type
> B exhaust requirements. Flux fumes are noxious and rated as type A.
> That means your fan capacity should be 125 times the face surface area
> of your hood. If you have a 24" x 30" hood, you need a fan that draws
> 625 cubic feet per minute.

That's great info, Thanks! I had no ideal about the calculations. My
work area is currently very small (a 6'X3' folding table with an
additional laminate desk-top, over which I place a 3'X2' Homasote or cork
board, depending upon what I'm doing). So now I can actually calculate
what I need :)

>
> Many glass artisans (for stained glass and torchworking) have rigged
> an overhead hood with an inline duct fan like these:
> http://www.vicartglass.com/products/products%20fans.html

Thanks for the link! Good stuff.

> Dennis Brady
> Victorian Art Glass
> www.vicartglass.com
>

The Dragon is amazing...same for the "Cutty Sark" - wow!
Fun site.





Posted by howard on June 22, 2008, 12:56 pm
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Kris Krieger wrote:
> Hi, ALl, I was wondering whether anyone is familiar with air-
> filtration/fume hood type systems suitble for a very small in-home
> glassworking bench. Best would be somehting that coudl be lifted onto the
> working surface during soldering/grinding (tho' I intend to do most of my
> grinding outside, as I have a covered porch), then lifted off and moved
> when I'm wither scoring glass, or using the table for some other purpose.
>
> TIA!
>
> - Kris
>
================================
squirrel cage motor
4" flexible dryer hose attached to the motor
wood or styrofoam with 4" hole for the dryer hose
place in window and close window until it abuts the above
vent 4" dryer hose to the outside

cheap, easy and effctive

h



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