The Plastic Filter Bottles we currently market in the Sport Berkey and Seychelle Fill2Pure ranges. Standard and Fast-flow Filters removes up to 99.99% of contaminants. Advanced filters remove 99.9999% of viruses. Each bottle is non-leaching, BPA and lead-free, reusable, lightweight, and taste-neutral. Each bottle saves the environment and can save your health of you are traveling to an area with dicey water supplies.