The Black + Blum charcoal filter water bottle encourages you to stay hydrated by being able to take your filtered water with you everywhere. Stop buying bottled water and reduce your single-use plastic consumption. Benefits of binchotan charcoal: softens water, balances pH levels, adds good minerals, and absorbs unwanted contaminants like chlorine. How it works: drop, tilt, and squeeze the bottle to secure the charcoal in place, fill with tap water, and wait for the charcoal to remove impurities. Bottle specifications: made of BPA-free Tritan, natural cork, stainless steel, and silicone. Includes a Binchotan active charcoal filter. Dimensions: 8.5 x 24 cm. Capacity: 800 ml. Care for your filter: hand wash with hot water and soap, natural cork is not dishwasher safe.