Formalin Liquid is used to support effective sanitation, preservation, and laboratory hygiene. Its formaldehyde-based formulation helps control microbes on various surfaces, making it useful in research, healthcare, and industrial environments. The solution also assists in specimen preservation and manages the decomposition of biological materials. It plays a crucial role in sterilisation processes where high-level hygiene is required. Proper handling ensures safe and effective use across scientific and commercial applications.