LAS VEGAS (AP) — Shawn Seipler is on a mission to save lives with soap.

It began about seven years ago as a tiny operation with a few friends and family in a single car garage in Orlando, Florida, where they used meat grinders, potato peelers and cookers to recycle used soap into fresh bars.

The non-profit initiative, now called Clean the World, has since grown to include industrial recycling facilities in Las Vegas, Orlando and Hong Kong, cities where hotels are plentiful and used bars of soap can be gathered easily by the thousands.

As a frequent traveler while working for a tech company, Seipler had a thought one night at a Minneapolis hotel.

“I picked up the phone and called the front desk and asked them what happens to the bar of soap when I’m done using it,” he recalled. “They said they just threw it away.”

Seipler, now the group’s CEO, said that after some research he discovered that millions of used bars of soap from hotels worldwide are sent to landfills every day while many people in developing nations are dying from illnesses that could potentially be prevented if they only had access to simple hygiene products.

Thus began his mission to help save lives with soap and even half-used bottled amenities like shampoo.

“It’s a huge problem,” said Dr. William Schaffner, a professor of preventative medicine and infectious disease specialist at Vanderbilt University Medical Center in Nashville, Tennessee. “One of the most common kinds of illnesses in the world are those that are transmitted from person to person and to oneself because of germs that are on one’s hands.”

In the U.S. and other developed nations, Schaffner noted, people take hygiene products for granted because they are everywhere — soap in public restrooms and even cleanser wipes at the entrances of grocery stores to sanitize shopping cart handles.

Not so in some other countries, where Schaffner recalled visiting a hospital once in the Middle East to find that soap was in such short supply that patients had to provide their own or go without.

“It’s such a fundamental part of the interruption of transmission of infectious agents that could save so many lives,” he said. “It’s not a magic wand, but it’s a very important element.”

Clean the World this week announced it was partnering with the similar Global Soap organization to increase production, hygiene education and delivery.

The combined group now collects used soap from more than 4,000 hotels and says it has delivered some 25 million bars to 99 countries, including homeless shelters in the U.S.

The process is fairly simple with the collected soap being shredded then run through machines that remove any residual bacteria before being pressed into new bars of soap and packaged for delivery.

The group uses local aid and non-governmental organizations to help with distribution and ongoing education, along with sending their own teams into rural communities around the world to personally hand-deliver hygiene products and to teach residents about the importance of keeping clean.

“A lot of people are surprised to find out that one of the most effective ways to prevent many deaths is actually just hand-washing with soap,” said Global Soap’s director Sam Stephens. “We’re hoping to make a difference.”