The AQUA+ HCH incorporates the latest advances in material technology to provide humidifiers with optimal moisture output, minimal dead space and low resistance to flow. The filtered units have a bacterial/viral filtration efficiency of 99.99 helping reduce the risk of cross-contamination. All AQUA+ HCHs are individually packaged.AQUA+ HCH line utilizes a fiber-free, cellular hygroscopically treated media, and is available in a variety of configurations to meet a wide range of clinical needs. One-piece construction with flexible tubing aids in patient positioning