This technology was first inspired by an ex-Navy entrepreneur while discussing our work in hemp biodiesel and distribution energy generation. He mentioned that he was aware of hemp being used around the metal cabling of large ships to prevent rusting and heavy metal leakage, and that he was curious if it could be used for filtering hydraulic fracturing ("fracking") waste water to make the process more environmentally friendly. After some casual side-research the Foundation for Industrial Hemp Production & Research discovered that the entrepreneur may have been right, and not only did it show potential to reduce rust and heavy metals but also bacteria and microbes. This would be huge for consumers, as well as the commercial and industrial sectors.
The current model of the original HMF filtered faucet aerators is actually different than the ones we had as prototypes. Instead of two layers of hemp and one layer of carbon, the new filter has two layers of carbon and one layer of hemp. There are a few reasons for the design change: 1) Some material for the prototypes was purchased locally and from unsustainable materials, so we found a new supplier with higher ethical standards and a world-renowned reputation; 2) The initial layer of carbon had less contact time with the water, so by including a second layer in the redesign we improved the provided benefit; 3) The aforementioned new supplier is simply cheaper and more reliable making bootstrapping that much easier.
In the near future the FIHPR hopes to expand out of filtered faucet aerators into larger residential, commercial and industrial applications. Current prototypes in the works include a filtered shower head and a household filtration unit. We hope that by scaling the size of the device up and reformatting the material we can greatly improve water filter efficacy and discover unprecedented benefits. With your help we can change the way that the world cleans its water.