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Amazon Shop for: Agar, HEPA Filter, Laminar Flow Hood

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Invisiblefinding_self
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Registered: 05/15/05
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fake titles
    #4266711 - 06/07/05 06:36 AM (11 years, 5 months ago)

a


Edited by finding_self (04/18/06 11:18 PM)


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Invisiblebackupwards
peon

Registered: 04/02/05
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Re: Question for the microbiologist or if you just know... [Re: finding_self]
    #4266715 - 06/07/05 06:39 AM (11 years, 5 months ago)

don't think so. the flow hood directs the fresh, clean air directly out of the hood. this giving you a very clean area to work in. with just the hepa running in your room you could be stirring up contams that could fall into the current coming out of your hepa and go directly into whatever it is you are working on.
good luck
peace


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Invisible@cro
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Re: Question for the microbiologist or if you just know... [Re: finding_self]
    #4266760 - 06/07/05 07:31 AM (11 years, 5 months ago)

not even close.  :crazy2:

it would help the overall condition of your room but i'm afraid there's no shortcuts around this one.


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Invisiblefinding_self
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    #4266790 - 06/07/05 08:00 AM (11 years, 5 months ago)

a


Edited by finding_self (04/18/06 11:18 PM)


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Invisiblefinding_self
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fake titles [Re: finding_self]
    #4266791 - 06/07/05 08:01 AM (11 years, 5 months ago)

a


Edited by finding_self (04/18/06 11:18 PM)


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Invisiblebackupwards
peon

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Re: Question for the microbiologist or if you just know... [Re: finding_self]
    #4266843 - 06/07/05 08:31 AM (11 years, 5 months ago)

yes, but it pulls air from outside the unit through the filters and then straight out of the unit. pulling the air inside the unit and directing it across will create eddies and currents that will not be inducive to a good flow. you need to have that direct flow through the hood so that contams cannnot float around or be pulled back into the unit. your method will clean the air and just keep swirling it around and pulling unclean air into the unit. for your best results you really need to have that laminar flow through a hood. how are you coming to the conclusion that you have clean sterile air in the work environment?
peace


Edited by backupwards (06/07/05 08:33 AM)


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OfflineRogerRabbitM
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Re: Question for the microbiologist or if you just know... [Re: backupwards]
    #4267085 - 06/07/05 10:44 AM (11 years, 5 months ago)

A room type HEPA unit is not a flowhood, and can't be substituted for one. There is a huge difference between a paper filter 1" thick and a metal/ceramic laminar flow hood filter 11" thick. It would certainly be nice if we could get a $79 unit from the hardware store or sears that would work instead of a $500 flowhood, but sadly that isn't the case.
RR


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Offlinescatmanrav
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Re: Question for the microbiologist or if you just know... [Re: RogerRabbit]
    #4267322 - 06/07/05 12:39 PM (11 years, 5 months ago)

A flow hood does not just direct the air, it removes a certain amount of contams from the air as it forces a wall of the sterile air over a desk. A room type HEPA filter for one, doesnt have the same kind of filter that a flowhood does (there are many grades of HEPA filters and room units dont use ones with a good enough filter. For two, the area that the air blows out of on room units isnt a large wall of air (forgeting that its not sterile enough) as it is on a flowhood.

You would be better off, cleaning your bathroom (or another small room with no carpets) and sealing it off from all airflow and breezes, and cleaning it well before using it. I do all my work open air in my bathroom, grain to grain transfers, agar, liquid cultures, spawning, everything...but you dont want any air flow. Leaving a HEPA filter on in the room actually makes things worse because it doesnt filter the air enough, but it creates a breeze to stir around contaminates.

Oh and dont expect everyone to explain out the reason to you why everything in the world doesnt work. You come here asking for advise, and you got it. Because people dont feel like typing out long assed explinations, that can be found doing a search on the forum (I've answered this myself a dozen times over the last year). Not trying to be a dick, thats just how it is.


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"life is like a drop of rain getting closer and closer to falling into a lake, and then when you hit the lake there is no more rain drop, only the lake."

Growing with bags, start to finish (including my new grain and substrate prep)
Anyone looking to start bulk tubs/mono tubs/shotgun hybrids? Good tubs to use..
How I do grain (old still good tips)
Turn your closet into a fruiting chamber
Casing layer colonization and overlay


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Amazon Shop for: Agar, HEPA Filter, Laminar Flow Hood

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