Formalin chamber Shanti A four-tray formalin chamber is typically used in histology and pathology labs for the fixation and preservation of biological tissues. Here’s a breakdown of its key features and uses: Key Features: Design: The chamber usually has four separate trays, allowing for the simultaneous processing of multiple samples. This can help streamline workflow and enhance efficiency. Formalin Use: Formalin, a solution of formaldehyde in water, is commonly used as a fixative to preserve tissue samples, maintaining their structure and cellular integrity. Temperature Control: Some chambers are equipped with temperature control features to ensure optimal fixation conditions, which can be crucial for maintaining tissue quality. Ventilation: Proper ventilation or fume extraction systems are often included to safely manage the fumes produced by formalin. Capacity: Depending on the size of the chamber and trays, it can accommodate various sizes and types of tissue specimens.