demonstration and show you what it's able to do and we'll teach you how to use it and maintain it. if you use them properly, they will last you the next ten years. >>. [ speaking foreign language ] >> the sawyer filter fits on the end of a 5 gallon bucket. the water passes through a membrane with tiny porous holes in it. it captures 99.99% of the contaminants. so, i know a lot of you are going to be leaving to the settlement camp. those of you that are leaving, we wanted you to get one of these filters. we are going to go back and bring more filters so everyone else in the camp can have these same filters that you have as well. that's it. they are simple.