A formalin chamber is a controlled environment or space designed for the storage or preservation of biological specimens using formalin, which is an aqueous solution of formaldehyde gas, typically at a concentration of 37-40%. Formalin is commonly used in biological and medical laboratories for the preservation of tissues, organs, and other specimens, as it prevents decomposition and maintains cellular structure. Key functions of a formalin chamber include: Preservation of Specimens: The chamber is used to store specimens in formalin to prevent decay and maintain their integrity for study, research, or educational purposes. Control of Exposure: The chamber ensures that the exposure to formalin is contained and safe, as formaldehyde can be harmful to human health. Proper ventilation and safety protocols are essential when working with formalin. Temperature and Humidity Regulation: A formalin chamber may have specific conditions, such as controlled temperature and humidity, to optimize the preservation process.