The negative pressure weighing chamber is a specialized local purification device used in places such as pharmaceuticals, microbiological research, and scientific experiments. It provides a vertical unidirectional airflow,with part of the clean air circulating in the working area and the rest being discharged to the nearby area,creating a negative pressure in the working area to prevent cross-contamination and ensure a high cleanliness
environment in the working area. Weighing and packaging dust and reagents in the equipment can control the overflow and upward movement of dust and reagents, prevent the inhalation hazard of dust and reagents to the human body, and also avoid cross-contamination of dust and
reagents, protecting the safety of the external environment and indoor personal.