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This innovative soft bottle uses activated carbon to source clean drinking water in the wild, and might have us ditching our Lifestraw
A second removable activated carbon filter reportedly takes care of bad taste ... When you're not using it, you can roll it ...
Hackaday2y
Nevermore Is What You Get When Engineers Design Air Filters For 3D Printers
3D-printable parts and an easy-to-fill chamber for bulk-activated carbon make this recirculating air filter for VOCs a smart, space-saving design. A Nevermore filter sits inside the build chamber ...