Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
Bottled water is the only source of drinking water in flood area, but it always be short of supply.
Hourglass Filter is a simple water purification equipment, which can purify polluted water like an hourglass. Hourglass Filter can reduce the transport burden in rescue by self-sufficiency, and helps victims to get drinking water more quickly and more convenient.