Specifications Preposing Nasal Canal Competitive price and high quality Delivery rapidly CE/ISO approved Low air current resistance results in low work of breathing *Patented slide bar technology guarantees the right installation position, then preventing compression tissues from necrosis *Supply different types of nursing gestures such as lying on back, lying on stomach, lying on side *Expansible tube, which makes pipelines be easy to position, and control condensation by variation of the length of pipelines