already made it
![Screenshot_20210226-180153_Gallery.jpg](/data/attachments/3939/3939771-d29a00b04a6dedf9e295e5abbbbb209d.jpg)
![Screenshot_20210226-180229_Gallery.jpg](/data/attachments/3939/3939772-f70c10b8f1f5007bf4ffe22089c59f62.jpg)
![Screenshot_20210226-184229_Gallery.jpg](/data/attachments/3939/3939791-d445d9c69344e552054123800b72afe4.jpg)
Baaically i covered the backside of a 5.5" usb fan with a stockings bag filled with activated carbon and about 200g of it.
I think 200g is too much as it makes for about 1/2 inch layer and i think the sucktion is little to none.
I am considering taking off some 100g of the 1-2mm coal and making two of these.
I hestitate to pick this one apart and wanted to ask what a good test would be and how much suction i need.
The space i ventilate is 1x1x2ft, micro
![Screenshot_20210226-180153_Gallery.jpg](/data/attachments/3939/3939771-d29a00b04a6dedf9e295e5abbbbb209d.jpg)
![Screenshot_20210226-180229_Gallery.jpg](/data/attachments/3939/3939772-f70c10b8f1f5007bf4ffe22089c59f62.jpg)
![Screenshot_20210226-184229_Gallery.jpg](/data/attachments/3939/3939791-d445d9c69344e552054123800b72afe4.jpg)
Baaically i covered the backside of a 5.5" usb fan with a stockings bag filled with activated carbon and about 200g of it.
I think 200g is too much as it makes for about 1/2 inch layer and i think the sucktion is little to none.
I am considering taking off some 100g of the 1-2mm coal and making two of these.
I hestitate to pick this one apart and wanted to ask what a good test would be and how much suction i need.
The space i ventilate is 1x1x2ft, micro
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