By Onyedimmakachukwu Obiukwu The Nanofilter is a sand-based water filter which uses nanotechnology to cleanse contaminated water and make it safe for drinking. Click here to read entire article
Source:: How we made it in AFrica
By Onyedimmakachukwu Obiukwu The Nanofilter is a sand-based water filter which uses nanotechnology to cleanse contaminated water and make it safe for drinking. Click here to read entire article
Source:: How we made it in AFrica