The SH870 Surgical Humidification System consisting of the SH870 Surgical Humidifier and ST320 Humidified Insufflation Kit is designed for the delivery of warm, humidified CO2 during laparoscopic and open surgery. It has a large capacity chamber for at least six hours of operation along with water out detection that reminds to replenish water and flow out detection that reminds to replace the gas source.