A gallery from Jon Rose’s latest mission. All photos and captions: Mark Choiniere

Since Jon Rose founded Waves For Water in 2009, he’s distributed more than 50,000 filters to areas in need. The bulk of those filters are in Haiti, where a January 2010 earthquake killed more than 200,000 people and left 1.5 million homeless. Jon has spent the bulk of his last year in Haiti, traveling to the country more than 20 times and establishing a small-but-efficient network of people who are able to put their magic Sawyer water filters in the hands of those who need them most. Photographer Mark Choiniere joined Jon on his latest trip to Haiti and documented his day-to-day operations. Needless to say, he was moved.

For more on Waves For Water and how to get involved, go here.

Jon, spreading the clean-water gospel at a local school. Jon has that reputation of being a guerilla – just charging it to make things happen. But when it really comes down to it, he’s a teacher who loves sharing this simple solution with the world.

Jon connects with another student who can pass on the newfound knowledge.

A view from the rooftop of Jon’s apartment in Port au Prince. He loves Haiti and likes being in the thick of it.

An impromptu demonstration with his dad Jack and his righthand man, Fritz. It’s really that easy. One bucket and a filter can change 100 lives in an instant.

Not sure how much of this comes across, but this is a dump where they burn their trash. That smoky stench of burning refuse is everywhere here.

One man’s garbage is another man’s table. In Haiti, they use what they have. When it’s all used up, it becomes a makeshift roadside stand.

A typical morning walk in Port au Prince. This particular area is more dangerous than you can even imagine.

More than 1.5 million were left homeless after the 2010 earthquake. This is where most of them end up: one of the countless tent camps in the region. Needless to say, it’s tight quarters.

Just outside the city is some of the most beautiful scenery you’ll find. This is a secret water hole – what water should look like.

The cities are full of colorful graffiti art and sayings. A lot of the stuff is political – their version of a campaign sign.

One thing you’ll notice is that everyone works hard here. This was just outside the airport. I’m sure this guy is just trying to feed his family.

Probably my favorite photo from this trip. Check it out: every single kid is striking a cool little pose.

One of the primary reasons why Jon’s work is so important. Check out this river: it’s a bath, drinking fountain and trash dump all in one. Definitely not good for your health.

These are the guys who make it happen for Waves for Water in Haiti: Jon, Jack and Fritz – a Haiti native who returned back to the country to help the cause.

Life constantly collides with art in Haiti.