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Offlinealfonseelrick
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Merv filters for cheap "laminar flow"
    #27362083 - 06/24/21 08:59 PM (2 years, 10 months ago)

I have heard of these being used but wanted to see other peoples input on the subject if they have personal experience... Thank guys!!!!

Edited by alfonseelrick (06/28/21 08:47 AM)

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OfflineSagefully
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Re: Merce filters for cheap "laminar flow" [Re: alfonseelrick]
    #27362204 - 06/25/21 12:21 AM (2 years, 10 months ago)

Following for such a great question

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Re: Merce filters for cheap "laminar flow" [Re: Sagefully]
    #27365773 - 06/28/21 01:25 AM (2 years, 10 months ago)

I tried googling merce filter and got a bunch of merv filters and air filters for Mercedes Benz lol

From my under standing, you really need a HEPA 99.99% filter for trusted laminar flow.. I know people use the furnace filters for prefilters for their hoods, but HEPA is what you work in front of

But maybe you can show me what a merce filter is

Faht

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Offlinealfonseelrick
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Re: Merce filters for cheap "laminar flow" [Re: fahtster]
    #27365996 - 06/28/21 08:52 AM (2 years, 10 months ago)

sorry it was a typo


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InvisibleIcyurmt
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Re: Merce filters for cheap "laminar flow" [Re: alfonseelrick]
    #27366053 - 06/28/21 09:38 AM (2 years, 10 months ago)

MERV (minimum efficiency reporting value)  is a rating system for air filters not a specific type of filter itself.  It’s based off of a scale from 1-20 but only 1-16 are recognized under that rating system. HEPA filters would be 17 and 18 on the MERV scale and ULPA 19-20.  Hope this helps clear things up :sporedrop:

Edited by Icyurmt (06/28/21 09:46 AM)

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Offlinealfonseelrick
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Re: Merce filters for cheap "laminar flow" [Re: Icyurmt]
    #27366293 - 06/28/21 01:48 PM (2 years, 10 months ago)

sorry im mainly looking for people with personal experience using these but thanks for the input guys!!!


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InvisibleIcyurmt
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Re: Merce filters for cheap "laminar flow" [Re: alfonseelrick] * 1
    #27366308 - 06/28/21 02:10 PM (2 years, 10 months ago)

Quote:

alfonseelrick said:
sorry im mainly looking for people with personal experience using these but thanks for the input guys!!!




Everyone that uses a clothes dryer has personal experience with a MERV 2 filter. Lint traps are a MERV2. Likewise everyone who has a flow hood with “HEPA” is also using either a MERV 17 or most often MERV 18..  Your question is unclear.


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Edited by Icyurmt (06/28/21 02:33 PM)

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OfflinedoubleD
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Re: Merce filters for cheap "laminar flow" [Re: Icyurmt]
    #27366545 - 06/28/21 05:09 PM (2 years, 10 months ago)

at least i learned something today


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Re: Merce filters for cheap "laminar flow" [Re: doubleD]
    #27367755 - 06/29/21 02:33 PM (2 years, 10 months ago)

I myself used a "flowhood" that used a Merv 14 furnace filter for about a year. All I can say is that it is far better than open air, not as clean as a SAB used properly and garbage compared to real 99.99 or better.

I made it work because I hated the SAB constraints and visibility. My success rate with pouring plates was sometimes well over 90% but often would hit closer to 50%. So far with my real hood I've had 2 bad plates out of about 1200. Worlds different.


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Re: Merce filters for cheap "laminar flow" [Re: alfonseelrick]
    #27367838 - 06/29/21 03:33 PM (2 years, 10 months ago)

Quote:

alfonseelrick said:
sorry im mainly looking for people with personal experience using these but thanks for the input guys!!!



You need to figure out what you're even talking about first.

Everyone with central air has experience using merv filters. Hepa laminar flow filters have pretty much nothing to do with the merv rating system


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Offlinealfonseelrick
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Re: Merce filters for cheap "laminar flow" [Re: Smartattack]
    #27367860 - 06/29/21 03:49 PM (2 years, 10 months ago)

thank you for your input im getting back into mycology had ok success before without a flowhood but now i ordered everything to make a flowhood the only thing is because of covid my filter will take two months to get here..... and already knocked up a couple of plates using merve 12 filter, and its almost been a week with no signs of contam


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Offlinealfonseelrick
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Re: Merce filters for cheap "laminar flow" [Re: Icyurmt]
    #27367865 - 06/29/21 03:50 PM (2 years, 10 months ago)

sorry i dont know what i talk about i do appreciate you and others helping me out tho thank you


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Re: Merce filters for cheap "laminar flow" [Re: alfonseelrick]
    #27367867 - 06/29/21 03:53 PM (2 years, 10 months ago)

You can pick up a merv 12 filter at the hardware store down the road. I really hope you don't think you've stumbled onto a solution tens of thousands of people overlooked. Hundreds of people try this or similar every year and learn the hard way that the successful jars were not proof of the filter working but rather just some good luck

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Offlinealfonseelrick
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Re: Merce filters for cheap "laminar flow" [Re: bodhisatta]
    #27367871 - 06/29/21 03:54 PM (2 years, 10 months ago)

i order a biomax koch filter but because of covid itll be two months before it is shipped...


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Edited by alfonseelrick (06/29/21 03:56 PM)

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Re: Merce filters for cheap "laminar flow" [Re: alfonseelrick]
    #27367882 - 06/29/21 03:58 PM (2 years, 10 months ago)

You say Merv filters like they're a thing.
Merv is a rating for furnace filters.

Saying "merv filters" is like saying "crash rated cars" every car has some kind of crash rating just like every furnace filter has some kind of merv rating.

You would want to use the highest merv number you could find. But that's going to be a furnace filter not a laminar flow hepa filter. Waste your money if you must but you would be significantly better off saving up for the right stuff


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Re: Merce filters for cheap "laminar flow" [Re: bodhisatta]
    #27367996 - 06/29/21 05:08 PM (2 years, 10 months ago)

Yeah the filters are cheap but you still have to build an enclosure and source a blower and whatnot. Might as well pair that with an actual filter. Otherwise use a SAB in the meantime is going to be the  consensus.


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Offlinealfonseelrick
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Re: Merce filters for cheap "laminar flow" [Re: bodhisatta]
    #27368423 - 06/30/21 12:55 AM (2 years, 10 months ago)

im not sure if you understood what i posted.... but to clarify i ordered a hepa filter a while ago before i made this post actually...  and everything else needed to build a laminar flow hood.... because of covid....it will take 2 months to reach me..... i wanted to see other alternatives....and these filters can be used as pre filters for my flood hood so not wasting any money there....


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Re: Merce filters for cheap "laminar flow" [Re: alfonseelrick]
    #27368486 - 06/30/21 04:19 AM (2 years, 10 months ago)

The alternative. A still air box


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Re: Merce filters for cheap "laminar flow" [Re: bodhisatta]
    #27397369 - 07/22/21 12:37 AM (2 years, 9 months ago)

a merv12 rated furnace filter would be fine as a prefilter attached onto the intake of an FFU thou right? Or do I need to cancel an amazon order? lol


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Re: Merce filters for cheap "laminar flow" [Re: Ashtray161]
    #27397643 - 07/22/21 07:46 AM (2 years, 9 months ago)

I think it'll be fine. You just want to protect your main filter from too much excess debris, in turn making its lifespan much longer


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