Laboratory constant temperature equipment specialized for culturing biological samples such as cell culture, microbial culture, and tissue culture. Used in microbial testing, biomaterial development, and fermentation testing in quality control departments of manufacturing industries. Includes CO2 incubators, cell culture equipment, microbial incubators, and shaking incubators with precise temperature, humidity, and CO2 concentration control functions. Unlike general constant temperature baths or dryers, these are specialized equipment designed for maintaining growth environments of biological samples, featuring culture-specific functions such as sterile environment maintenance, shaking function, and gas control function. Utilized in microbial testing in food manufacturing, bioprocess development in chemical industry, and quality testing in pharmaceutical manufacturing.