The ductless clean air fume hood is a new type of ventilation equipment that has been widely used in laboratory and chemical work environments in recent years. Unlike traditional fume hoods, it does not rely on complex exhaust duct systems, but instead utilizes new air flow control technologies for air treatment in a more efficient and environmentally friendly manner.
The core principles include the following aspects:
1. Air self purification technology: Through efficient filters and air circulation systems, it ensures that the air drawn in from the experimental table can be fully purified inside the cabinet. Filters typically include HEPA filters or ULPA filters, which can remove fine particles and harmful substances from the air.
2. Air flow control system: By automatically adjusting the speed and air volume of the internal fan, a stable negative pressure environment is maintained inside the cabinet to ensure that exhaust gas does not leak out.
3. Local exhaust: No complex external exhaust pipes are required, but harmful gases are directly guided to the outside through a built-in system through local exhaust.
The flow rate and flow regulation methods of ductless air purifying fume hoods can be divided into several types:
Manual adjustment: Users can directly adjust the speed of the fan and the opening of the exhaust outlet in the fume hood through manual knobs or buttons to control the flow rate and flow rate. This method is usually suitable for some simple laboratory environments.
Automatic adjustment: It is commonly equipped with an automatic adjustment system that can automatically adjust the flow rate and flow rate based on factors such as air quality, temperature and humidity inside the laboratory. This type of system typically uses a combination of sensors and control systems to monitor the air flow status in real-time and automatically optimize the air flow rate.
Intelligent regulation system: Some are also equipped with intelligent control systems, which can be linked with laboratory information management systems or building automation systems to further improve regulation accuracy and efficiency. This system can automatically adjust the flow rate and flow rate according to different needs during the experimental process.
Advantages of ductless clean air fume hood:
1. Advantage analysis
Energy saving: By implementing local exhaust and precise airflow control, energy consumption can be reduced while ensuring safety.
Improving safety: The adjustability of air flow rate and flow rate allows laboratory personnel to adjust the ventilation effect according to actual needs, ensuring that harmful gases do not leak out and improving the safety of the laboratory.
Reduce noise: The fan has low noise and is suitable for use in laboratories that require a quiet environment.
Easy to install and maintain: It does not rely on complex exhaust pipes, making installation relatively simple and reducing maintenance costs and complexity in the later stage.
The ductless air purifying fume hood provides a more flexible and efficient air purification solution with its advanced air flow rate and flow regulation technology. Its regulating function can not only meet the needs under different experimental conditions, but also reduce energy consumption while improving safety. In many laboratory environments that require precise control of air flow and purification efficiency, it has become an ideal choice.