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Invisiblesandman420
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Micropore Tape VS Polyfil, With Particle Counter Fun! * 2
    #26838009 - 07/22/20 11:00 AM (3 years, 6 months ago)

I ran some test for funsies to see what polyfil and micropore tape could do with my particle counter. This counter sucks air in through the little collector on the top which I covered with polyfil or micropore tape to see how they preformed. I Had the counter running 20 second intervals here.

3 Ambient Air Cumulative Tests
0.3µ    16,562    15,206      16,222    AVG 15,996
0.5µ    2,765      2,283        2,828    AVG  2,625
1.0µ      851        631          743    AVG    741




Polyfil Normal Tight Cumulative Test
0.3µ    11,353    29.03% Reduction of average particles
0.5µ    1,742    33.64% Reduction of average particles
1.0µ      109    85.29% Reduction of average particles



Polyfil Extra Tight Pressed in with a Pen Cumulative Test
0.3µ    9,142  42.84%
0.5µ    1,076  59%
1.0µ      35  95.27%




Micropore Tape 1 Layer Cumulative Test
0.3µ    12,948  19.05%
0.5µ    1,856  29.29%
1.0µ      335  54.79%




Micropore Tape 2 Layer Cumulative Test
0.3µ    7,249  54.68%
0.5µ      465  82.28%
1.0µ      21  97.16%


On the "extra tight" polyfil test I used a pen to really compress the wad very tightly in the collection tube.
It would be impossible to replicate that tightness and it was still not super good at filtering.
Honestly I was pretty surprised by the results, I really thought poly would filter out much more than it does.
And I thought micropore wouldn't do jack shit.
It would seem that 2 layers of micropore is superior to polyfil.
And neither are really that good. 2 layers only coming in at what would be a N50 mask if there was such a thing.


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- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


Edited by sandman420 (07/22/20 11:12 AM)


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InvisibleDrboomer
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Re: Micropore Tape VS Polyfil, With Particle Counter Fun! [Re: sandman420]
    #26838041 - 07/22/20 11:14 AM (3 years, 6 months ago)

Nice I've been waiting on this one.you got an sfd to try?


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Invisiblesandman420
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Re: Micropore Tape VS Polyfil, With Particle Counter Fun! [Re: Drboomer]
    #26838054 - 07/22/20 11:21 AM (3 years, 6 months ago)

I do not have a SFD ATM BB


--------------------
- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


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OfflineRapjack
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Re: Micropore Tape VS Polyfil, With Particle Counter Fun! [Re: sandman420]
    #26838065 - 07/22/20 11:24 AM (3 years, 6 months ago)

Wow, thanks! Great work dude, this is making me reevaluate my filter situation. I use three layers of MP but this is an eye opener for me. Wonder how well postal tyvek works.


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Edited by Rapjack (07/22/20 11:25 AM)


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Offlineverum subsequentis
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Re: Micropore Tape VS Polyfil, With Particle Counter Fun! [Re: Rapjack]
    #26838083 - 07/22/20 11:33 AM (3 years, 6 months ago)

It's good to note that jars don't have internal or external pressure sucking or pushing shit in. Cool test though.


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Invisiblesandman420
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Re: Micropore Tape VS Polyfil, With Particle Counter Fun! [Re: verum subsequentis]
    #26838114 - 07/22/20 11:49 AM (3 years, 6 months ago)

There is definitely some pressure sucking air in at one point during the cool down of jars etc....

And when you shake/mix jars the media inside is like a big piston making a lot of compression and air flow happen as it bangs around inside the jar from top to bottom.


The fan on this is pretty weak Id bet it's sucking hardly 1-2 cfm.

Just a fun experiment nothing concrete but gives a general idea of their effectiveness.


--------------------
- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


Edited by sandman420 (07/22/20 11:56 AM)


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OfflineRapjack
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Re: Micropore Tape VS Polyfil, With Particle Counter Fun! [Re: verum subsequentis]
    #26838116 - 07/22/20 11:49 AM (3 years, 6 months ago)

Quote:

verum subsequentis said:
It's good to note that jars don't have internal or external pressure sucking or pushing shit in. Cool test though.




That's true, explains why unmodded plastic lids work.


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InvisiblePastywhyteMDiscord
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Re: Micropore Tape VS Polyfil, With Particle Counter Fun! [Re: Rapjack]
    #26838151 - 07/22/20 12:02 PM (3 years, 6 months ago)

If anything I’d imagine the colony producing CO2 causes a positive pressure effect on the filter.


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Offlineverum subsequentis
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Re: Micropore Tape VS Polyfil, With Particle Counter Fun! [Re: Pastywhyte]
    #26838165 - 07/22/20 12:08 PM (3 years, 6 months ago)

indeed.

And yeah, sandman, during the cool down... for sure. That's why I like to let them cool in the flow. (This is actually untrue. I use sfd and it's fucking bullet proof. I cool in the flow so i don't have to iso before rubbing one out. I used to cool in the flow for other reasons but don't use mp or poly anymore)


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InvisiblePastywhyteMDiscord
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Re: Micropore Tape VS Polyfil, With Particle Counter Fun! [Re: verum subsequentis]
    #26838176 - 07/22/20 12:12 PM (3 years, 6 months ago)

Gives another reason for putting foil on the lids, even if you use SFD. Even with pressure I don’t imagine mold spores do very well at changing directions.


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Invisiblesandman420
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Re: Micropore Tape VS Polyfil, With Particle Counter Fun! [Re: verum subsequentis]
    #26838177 - 07/22/20 12:12 PM (3 years, 6 months ago)

I often look at spawn bags finishing colonizing with a bloated bag and think to myself....that filter never did anything I bet hardly any gas went in or out of this thing....


--------------------
- Sandbag Tek - How To Sterilize Spawn Bags - All About Static Pressure / Pressure Drop for DIY Flow Hoods - Sandman's LC Tek-

Marijuanaut escapes earth to cultivate - Grow-room is church temple of the new stoner breed


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