Formalin Chamber Shanti A formalin chamber is typically used in laboratory settings for the preservation of biological specimens, particularly in histology and pathology. Formalin, a solution of formaldehyde in water, is commonly used to fix and preserve tissues for microscopic examination. The chamber itself is designed to safely contain and manage the fumes and vapors associated with formalin, ensuring a safe working environment. It may include ventilation systems to filter and exhaust fumes, as well as features for controlled temperature and humidity, which can help maintain the integrity of the specimens.