In response to the Flint Michigan water crisis, chemist Eric Roy began making water filters that were more effective than the filters being used. He was determined to render the drinking water free of deadly contaminants. He has expanded his operation and now creates filters specific to the needs of homeowners, saving money by not having to replace the system of pipes supplying water to their homes. The company is growing as the need for his products grow.

Read more: The man helping Americans access safe drinking water