FUME HOOD is a type of local ventilation device that is designed to exhaust toxic fumes, vapor or dust to secure the safety of laboratory workers. Since it is connected to the HVAC system of a laboratory, exhaustion efficiency and energy saving are important. Therefore, it is critical to have a fume hood of good design and performance which satisfies the requirements. The fume hood of the CHC lab is manufactured with our optimal design and its performance is verified through extensive AASH-110 performance testing. The fume hood consists of a large-site glass sash, a front door, controller, safety valves, receptacles, automatic sash controller and a chamber type duct. Unlike the traditional duct, it is designed with the streamlined chamber type duct located on top of the product to help smooth the discharge of air. The fume hood is an essential piece of equipment to create a safe and pleasant laboratory environment. When a blower connected to an HVAC system is activated, air starts to blow inside the fume hood. It enters through a specific region and airfoil located on the front door and then blows out to a duct through a baffle. A proprietary airfoil of the CHC lab fume hood is designed to create a stabilized flow of gas and flowing from the front and it prevents the vortex of air creating a safety zone. The space in between a front door to the 150mm from the door is considered to be a toxic gas concentrated danger zone. But the CHC lab fume hood secures a safety zone by separating the danger zone with its airfoil. The airfoil is designed to be on the same level with the work surface and this design makes it easy to install and remove laboratory instruments. Still, it must be noted that laboratory instruments such as regions cannot be placed on the top of the airfoil. The CHC lab fume hood is equipped with optimally designed baffles. The baffles are designed to discharge toxic gas in an efficient fashion. Through the CF design simulation and the extensive performance of tests, the CHC lab fume hood has established its excellence. Based on test results, the recommended height of a sash door opening is 500mm, not to exceed 600mm. In the case of a vertical sash, a safety sash stopper is installed with a height of 500mm, so it would not exceed the required level during experiments. With a safety sash stopper at the bottom of the front door, the door opening can be adjusted to over 500mm. The front door is designed with a hybrid sash structure to enable its opening in both vertical and horizontal directions. Compared to a vertical sash, a hybrid sash has a smaller aperture of a door. In addition, it is possible to operate using only the arms. In doing this, researchers can control laboratory work more safely. A sensor on the door detects movement and automatically closes the door when there is no user in front. This automatic sash controller can save energy by about 40% and limits risk of explosion. The CHC lab fume hood can control the air volume through a controller with a Vav system. It can control a damper by using a door sensor and air volume sensor and air discharge of volume by controlling a blower. This CHC lab is designed to ensure maximum legroom under the fume hood. But, it allows various types of built-in region storage cabinets suitable for a range of lab environments.