|
Some of these posts are very old and might contain outdated information. You may wish to search for newer posts instead.
|
ryan
Member since 1997
Registered: 03/01/01
Posts: 111
|
Best place to get hepa filters
#3368518 - 11/16/04 11:31 AM (19 years, 4 months ago) |
|
|
Where is the best place (price/quality) to get hepa filters for building your own hood?
I would prefer a non fungus focused company.
Also, has anyone tried the Web HepaPlus filters that are only like $30 at lowes?
|
lemon_lw
Stranger
Registered: 10/17/04
Posts: 3,622
Loc: That Way
Last seen: 16 years, 6 months
|
Re: Best place to get hepa filters [Re: ryan]
#3368551 - 11/16/04 11:38 AM (19 years, 4 months ago) |
|
|
the thing you want to look for in quality is that it is 99.97% or higher. the differance is the size of particals it will capture.
-------------------- In the belly of the Leviathan, one can either despair and perish, or be cheerful and persevere.-Dean Koontz
|
Ferment
Stranger
Registered: 11/09/04
Posts: 99
Loc: NE USA
Last seen: 17 years, 8 months
|
Re: Best place to get hepa filters [Re: lemon_lw]
#3368642 - 11/16/04 12:02 PM (19 years, 4 months ago) |
|
|
Quote:
lemon_lw said: the thing you want to look for in quality is that it is 99.97% or higher. the differance is the size of particals it will capture.
From wikipedia.org:
HEPA is an acronym for "high efficiency particulate arresting".
A HEPA filter (theoretically) can remove from the air at least 99.97% of dust, pollen, mold, bacteria and any airborne particles with a size of 0.3 micrometres or larger.
|
ryan
Member since 1997
Registered: 03/01/01
Posts: 111
|
Re: Best place to get hepa filters [Re: Ferment]
#3389870 - 11/20/04 04:03 PM (19 years, 3 months ago) |
|
|
I know what a HEPA filter is. Just trying to find the best price on one. A few years ago people where using a site that had the filters for a small fraction of the cost FP is charging.
|
Ferment
Stranger
Registered: 11/09/04
Posts: 99
Loc: NE USA
Last seen: 17 years, 8 months
|
Re: Best place to get hepa filters [Re: ryan]
#3390183 - 11/20/04 05:40 PM (19 years, 3 months ago) |
|
|
Quote:
ryan said: I know what a HEPA filter is. Just trying to find the best price on one. A few years ago people where using a site that had the filters for a small fraction of the cost FP is charging.
I was talking about the post that said you needed 99.97. that is, it's a redundatn statement because you had already said that you wanted HEPA. As for where to get it, I've decided to ditch a project I was going to undertake so I've now got 11in x 8in x 2in HEPA filters that I had originally planned to epoxy together (4 of them, to make a 22 x 16 x 2 HEPA sheet). they cost about $25 each. bah Check your PM, no need to continue this here. Though if someone else is interested, shoot me a PM.
|
dobinky
infoseeker
Registered: 01/30/03
Posts: 2,436
Loc: Wiki, Kentucky
|
Re: Best place to get hepa filters [Re: ryan]
#3390188 - 11/20/04 05:42 PM (19 years, 3 months ago) |
|
|
I dunno if this is something your interested in using? I have a brand new one in box (i would have pic, but its at another location). If your interested just PM me.
-------------------- Today?s Pig is Tomorrow?s Bacon
Edited by dobinky (11/20/04 05:47 PM)
|
discman1
journeyman
Registered: 08/24/04
Posts: 962
Last seen: 19 years, 2 months
|
Re: Best place to get hepa filters [Re: Ferment]
#3391074 - 11/20/04 10:02 PM (19 years, 3 months ago) |
|
|
Quote:
Ferment said:
Quote:
ryan said: I know what a HEPA filter is. Just trying to find the best price on one. A few years ago people where using a site that had the filters for a small fraction of the cost FP is charging.
I was talking about the post that said you needed 99.97. that is, it's a redundatn statement because you had already said that you wanted HEPA. As for where to get it, I've decided to ditch a project I was going to undertake so I've now got 11in x 8in x 2in HEPA filters that I had originally planned to epoxy together (4 of them, to make a 22 x 16 x 2 HEPA sheet). they cost about $25 each. bah Check your PM, no need to continue this here. Though if someone else is interested, shoot me a PM.
That is incorrect.
As you said, HEPA is just an acronym for High Efficiency Particulate Air(filter). A HEPA filter will NOT always be 99.97% efficient at 0.3 microns.
What is "High efficiency"? Since that is not defined, a company can call anything a HEPA filter in their opinion.
There are 99.0% at 2 micron HEPA filters and 99.9% at 0.3 micron HEPA filters. Probably others, too. The most common "good" one is 99.97% at 0.3 microns. You don't want a 2 micron filter, even though they're considerably cheaper.
|
Ferment
Stranger
Registered: 11/09/04
Posts: 99
Loc: NE USA
Last seen: 17 years, 8 months
|
Re: Best place to get hepa filters [Re: Ferment]
#3393372 - 11/21/04 03:34 PM (19 years, 3 months ago) |
|
|
Quote:
Ferment said:
Quote:
ryan said: I know what a HEPA filter is. Just trying to find the best price on one. A few years ago people where using a site that had the filters for a small fraction of the cost FP is charging.
I was talking about the post that said you needed 99.97. that is, it's a redundatn statement because you had already said that you wanted HEPA. As for where to get it, I've decided to ditch a project I was going to undertake so I've now got 11in x 8in x 2in HEPA filters that I had originally planned to epoxy together (4 of them, to make a 22 x 16 x 2 HEPA sheet). they cost about $25 each. bah Check your PM, no need to continue this here. Though if someone else is interested, shoot me a PM.
Having done a bit more research, I realize that department store HEPA air filters glued together, no matter how they are glued together, still won't be able to provide laminar flow, even if it is sterile, that is, the airflow will be turbulent My apologies for the misinformation.
discman, I had been under the impression that HEPA was by definition at least 99.97% at 0.3microns. I had assumed that those were requirements of sorts to have tha label. My mistake, thanks for correcting me.
|
Anno
Experimenter
Registered: 06/17/99
Posts: 24,166
Loc: my room
Last seen: 9 days, 19 hours
|
Re: Best place to get hepa filters [Re: ryan]
#3393384 - 11/21/04 03:37 PM (19 years, 3 months ago) |
|
|
|
agar
old hand
Registered: 11/21/04
Posts: 9,056
Loc: Somewhere Else
|
Re: Best place to get hepa filters [Re: ryan]
#3393686 - 11/21/04 04:51 PM (19 years, 3 months ago) |
|
|
eBay, eBay, eBay..........................
Great Design
--------------------
|
derx
who run it
Registered: 05/29/03
Posts: 2,459
Loc: dx/dt
|
Re: Best place to get hepa filters [Re: discman1]
#3393762 - 11/21/04 05:07 PM (19 years, 3 months ago) |
|
|
Quote:
That is incorrect.
As you said, HEPA is just an acronym for High Efficiency Particulate Air(filter). A HEPA filter will NOT always be 99.97% efficient at 0.3 microns.
What is "High efficiency"? Since that is not defined, a company can call anything a HEPA filter in their opinion.
There are 99.0% at 2 micron HEPA filters and 99.9% at 0.3 micron HEPA filters. Probably others, too. The most common "good" one is 99.97% at 0.3 microns. You don't want a 2 micron filter, even though they're considerably cheaper.
HEPA Filtration This type of filtration is the kind used in submarines and hospitals?where clean air is needed most. HEPA stands for High Efficiency Particulate Air. To meet the criteria of a HEPA air cleaner, the filter must remove airborne particulate as small as 0.3 microns from the air that passes through the filter. There are three types of HEPA filters: 99%, 99.97% and 99.999%.
Source: http://www.bionaire.com/support_files/air_cleaners.aspx
-------------------- better living through chemistry OVERGROW the government!! it's not a war on drugs, it's a war on personal freedom, ok, thats what it is.
|
agar
old hand
Registered: 11/21/04
Posts: 9,056
Loc: Somewhere Else
|
Re: Best place to get hepa filters [Re: ryan]
#3393932 - 11/21/04 05:41 PM (19 years, 3 months ago) |
|
|
On eBay right now
Good ones weigh in around 50 pounds. But, well worth the shipping.
I could hardly ever get a clean liquid culture until I built a flow hood & used it. Now, It is a snap.
They are also GREAT for agar plate work, G2G transfers & making prints.
--------------------
|
ryan
Member since 1997
Registered: 03/01/01
Posts: 111
|
Re: Best place to get hepa filters [Re: agar]
#3397955 - 11/23/04 11:18 AM (19 years, 3 months ago) |
|
|
I also want to mount a short wave uv light inside the hood, just need to find a good source for the light and how long air needs to be exposed to be effective
|
|