all-encompassingly

lds bishops, relief society and elders quorum presidents, and disaster-preparedness specialists will want to key in on this:

A device about the size of a large pen or drinking straw, the LifeStraw is a complete water purification kit that draws its power from the person sucking down the water. The LifeStraw is the product of ten years of development work, based on the goal of creating an efficient, affordable water-purification system for the developing world, where water-borne illnesses are a major killer. When produced in quantity, each LifeStraw — which uses a combination of mesh filters, iodine-impregnated beads and active carbon to remove particulate matter and bacteria — is expected to cost under $2 and be able to provide a year’s worth of pure drinking water. [source]

currently, the item seems to be available only for bulk purchases and the like. in north america, contact brian hollingsworth.