The closed system design of these hanging bottles helps minimize the possibility of contamination to your patients. When sterile water hanging bottles are attached to the appropriate feed sets, replenishing empty nebulizers and refilling chambers is simplified. The easy one-step set-up offers convenience and helps reduce patient interruptions. The sterile water hanging bottles contain sterile water for inhalation, USP, and are available in two sizes: 1,000 and 2,000 mL.