Home | Community | Message Board

Cannabis Seeds UK
Please support our sponsors.


Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Shop: North Spore North Spore Mushroom Grow Kits & Cultivation Supplies   PhytoExtractum Maeng Da Thai Kratom Leaf Powder   Original Sensible Seeds Bulk Cannabis Seeds

Jump to first unread post Pages: 1
Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
Invisiblenewuser1492
Registered: 06/13/03
Posts: 3,104
Flow hood question
    #3807779 - 02/21/05 02:25 AM (17 years, 11 months ago)

I've been looking at flow hood designs as I figure I'll need one eventually. Especially given my new found goal to grow vibrio phosphoreum.

All the pictures of flow hoods I've seen seem to have an open front with a hepa filter on the back and a blower on top. The mechanics seem nothing like the flow hoods from my chemistry class. The flow hoods there sucked air up and away from you through the partially open hood. How do the mycology flow hoods work if the front is completely open?

I thought a sterile environment would be more like a glove box with a hepa filter for air inlet. All outgoing air would be pulled through a blower. A single sealing door would be used to remove and return items. Once the box was sealed all air would flow through the hepa filter and out the blower giving a sterile environment.

I don't understand how the flow hoods I've seen are effective (Anno's as an example).


Extras: Filter Print Post Top
OfflineAnnoA
Experimenter
 User Gallery

Folding@home Statistics
Registered: 06/18/99
Posts: 24,156
Loc: my room
Last seen: 4 hours, 1 minute
Re: Flow hood question [Re: newuser1492]
    #3808042 - 02/21/05 03:32 AM (17 years, 11 months ago)

They output a laminar flow of sterile air and you work in this sterile air.


Extras: Filter Print Post Top
Invisiblenewuser1492
Registered: 06/13/03
Posts: 3,104
Re: Flow hood question [Re: Anno]
    #3808082 - 02/21/05 03:42 AM (17 years, 11 months ago)

So the air is pushing towards you? If the blower is on top and the filter on the back how is the blower not pushing abient air directly at you?


Extras: Filter Print Post Top
OfflineKaptKid
Spaced Pirate
Male User Gallery

Registered: 12/12/03
Posts: 6,252
Loc: Bright Side of the Sun
Last seen: 2 years, 11 months
Re: Flow hood question [Re: newuser1492]
    #3808084 - 02/21/05 03:42 AM (17 years, 11 months ago)

"The mechanics seem nothing like the flow hoods from my chemistry class. The flow hoods there sucked air up and away from you through the partially open hood."

Never seen one but sounds like you would be pulling contam's past the work.

How do the mycology flow hoods work if the front is completely open?


Flow of filtered air keeps comtam'sfrom falling into work.


--------------------
Child of the 60's, Tripping ever since.


:sun:


Extras: Filter Print Post Top
OfflineAnnoA
Experimenter
 User Gallery

Folding@home Statistics
Registered: 06/18/99
Posts: 24,156
Loc: my room
Last seen: 4 hours, 1 minute
Re: Flow hood question [Re: newuser1492]
    #3808109 - 02/21/05 03:49 AM (17 years, 11 months ago)

> So the air is pushing towards you?
Yes.


> If the blower is on top and the filter on the back how is the blower not pushing abient air
>directly at you?

I don't know what you mean.



The blower blows the air through the HEPA filter.


Extras: Filter Print Post Top
Invisiblenewuser1492
Registered: 06/13/03
Posts: 3,104
Re: Flow hood question [Re: KaptKid]
    #3808120 - 02/21/05 03:53 AM (17 years, 11 months ago)

Never seen one but sounds like you would be pulling contam's past the work.

Biological contaminants weren't a problem. It was the evolution of toxic gas which was a problem. The hood sucked that gas up and away from you.

Hmm I think I'm thinking about the glove box backwards maybe?



I think I get it. The material you're working with goes in front of the hepa filter pictured above? Ahh I was thinking your workspace was actually enclosed like in a glove box.

Then what would the product I described in my post above be called? A pressure box?


Extras: Filter Print Post Top
OfflineAnnoA
Experimenter
 User Gallery

Folding@home Statistics
Registered: 06/18/99
Posts: 24,156
Loc: my room
Last seen: 4 hours, 1 minute
Re: Flow hood question [Re: newuser1492]
    #3808149 - 02/21/05 04:01 AM (17 years, 11 months ago)

>The material you're working with goes in front of the hepa filter pictured above?

Exactly.


Extras: Filter Print Post Top
InvisibleNewf
Stranger
 User Gallery
Registered: 01/17/05
Posts: 31
Re: Flow hood question [Re: Anno]
    #3809066 - 02/21/05 08:12 AM (17 years, 11 months ago)

The hood you used in Chem class was a fume hood. Designed as you said to draw away potentially harmfull gases and fumes. Laminar flow hoods are what we use and they blow rather than suck.
Messing with chem= Fume hood
Messing with biology= Flow hood.


Extras: Filter Print Post Top
Jump to top Pages: 1

Shop: North Spore North Spore Mushroom Grow Kits & Cultivation Supplies   PhytoExtractum Maeng Da Thai Kratom Leaf Powder   Original Sensible Seeds Bulk Cannabis Seeds


Similar ThreadsPosterViewsRepliesLast post
* laminar air flow hood question yogithehoneybear 1,797 2 01/27/02 03:20 PM
by mycofile
* flow hoods matching blower with filter is this right? greenshaman 4,915 10 04/22/18 06:08 PM
by bodhisatta
* flow hoods and blower motors quietnick 1,536 3 07/15/02 08:59 PM
by groingrinder
* Flow hood design for your approval dickmcplentie 2,600 5 07/09/03 12:06 AM
by Anno
* Hepa type filter - flow hood - cheap & easy
( 1 2 all )
SixTango 15,615 25 04/09/02 08:14 PM
by rebelmoon
* need a blower for flow hood cbull 784 1 05/23/02 12:24 AM
by BIGSWANG
* Oven Hood to flow hood conversion? G a n j a 1,918 3 01/13/03 01:23 PM
by debianlinux
* Correct airflow on flow hood SafeHaven 1,742 3 06/10/03 11:35 PM
by FungusmaximusFM

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Shroomism, george castanza, RogerRabbit, FooMan, mushboy, fahtster, LogicaL Chaos, 13shrooms, stonesun, wildernessjunkie, cronicr, Pastywhyte, bodhisatta, Tormato
2,983 topic views. 46 members, 235 guests and 15 web crawlers are browsing this forum.
[ Show Images Only | Sort by Score | Print Topic ]
Search this thread:

Copyright 1997-2023 Mind Media. Some rights reserved.

Generated in 0.023 seconds spending 0.008 seconds on 13 queries.