What are the differences between negative pressure isolators and aseptic isolators, and how to make the right selection?

A:The core difference lies in pressure control and protection orientation, making them suitable for different process scenarios.
1. Aseptic Isolator
It operates under a slight positive pressure environment. Its core function is to isolate contamination from the external environment and operators, ensuring product sterility and safety.The HJClean STI Series Aseptic Isolator effectively eliminates microbial contamination from outer packaging, builds a personnel-independent isolation system, and stably maintains a Grade A controlled clean microenvironment.Equipped with a dedicated VHP hydrogen peroxide sterilizer, sterilization residue removal system, aseptic air supply system, sealed cabin, HMI intelligent control and recording system, and computerized validation software, it adopts standardized isolator safety grade design. It facilitates compliant drug release and reduces plant environmental operation costs, widely applied in various aseptic isolation operations in pharmaceutical, medical, healthcare, biological testing and other industries.
2. Negative Pressure Isolator
It runs in negative pressure mode with ultra-high airtightness, which is designed to block the diffusion of hazardous materials and protect operators and the external environment.HJClean negative pressure isolator mainly consists of operation cabin, continuous bagging system, RTP valve system, intelligent control system, cleaning and sterilization system, waste liquid collection module and other components, with customized functional modules available on demand.It effectively prevents the leakage of toxic, harmful and irritant substances, and is applicable to process operations involving hazardous materials that pose risks to human health and the environment. It is widely used in anti-tumor drugs, high-potency biological products, special animal experiments and other fields.
3. Selection Recommendations
Prioritize aseptic isolators for scenarios focusing on product sterility protection, microbial control and routine clean operations;
Choose negative pressure isolators when handling highly toxic, high-potency, allergenic and infectious materials to ensure personnel and environmental safety.