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Offlinemagicbud
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Registered: 11/21/10
Posts: 95
Last seen: 3 months, 29 days
Can someone please check my HEPA filter specifications to help me avoid making a mistake.
    #27939852 - 09/08/22 06:26 AM (1 year, 4 months ago)

Hi all. I think I've finally found the filter for starting my flow hood, but before I pay out for it I was hoping that someone in the know could check over the specs for me. I really can't afford to make a mistake here. Below are all of the specifications I've been sent.

HEPA filter for standard applications:

Make and model:
ABSOLUTE CAX14 1219X610X150-P0-S H14 EN 1822

Size in mm:
1219x610x150

Type:
Cell filter

Recommended final pressure drop:
2x initial pressure drop.

Max. final pressure drop:
500 Pa.

Separator:
Hot melt.

Media:
Glass Fiber

Seal:
Polyurethane.

Supporting structure:
Metallic.

The filter is class H14 99,995% with 0,3μ (0.3 micron).

The last thing I need to know is about the pressure drop. In the video I watched the filter of this size had 1.0 inch of water gauge pressure drop. The specs they gave here me are in pa. I looked it up and pa seems to be pascal.
I did the conversion of Pascal to water gauge and 500 pa came to 2.0 inch water gauge. In the specs they also say "Recommended final pressure drop: 2x initial pressure drop." Would this give me the 1.0 inwg pressure drop from the video?

  Thanks very much.


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Offlinemagicbud
Stranger

Registered: 11/21/10
Posts: 95
Last seen: 3 months, 29 days
Re: Can someone please check my HEPA filter specifications to help me avoid making a mistake. [Re: magicbud]
    #27946166 - 09/12/22 12:01 AM (1 year, 4 months ago)

The size of the filter in inches is:
48x24x5.9

The only thing I really need to know now is the actual pressure drop I should use for selecting the fan.

If it says Max 500pa, and 500pa is 2.0 inwg. Should I be looking at 2.0 inwg on the graph  when choosing the fan?

The part what confuses me is where it says "Pressure drop: 2x initial pressure drop.".
I assume this would make the initial pressure drop 1.0 inwg.
Should I be looking at the initial pressure drop, the max pressure drop, or is anywhere in in between going to be ok?

Thanks again.


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