Capacity of 1.3 L for this water bottle Brita filter. On first use everything must be clean (normal), place the disk to filtration, and fill the bottle. Council empty the first time. Fill and place in the refrigerator according to the desire. The bottle is dishwasher dishes not more than 50 °, personally I not know the temperature of my dishwasher, but not the cap on which is an indicator for the length of the cartridge. A change every 4 weeks. Plastic bottle that seems to be made with great care and process without toxic products. The concept is nice, but the buying filters often to change every month is less nice ...