1. Vertical closed type bench surface can prevent airflow from outside and 
harmfulness to operator from odor of operation area;
  2. Adopt fan system with adjustable air volume, touchable switch and 
voltage with double speed adjustment to ensure good condition of airflow speed 
in working area;
  3. User-friendly design completely meets users’ needs. Adopt sliding 
operating doors with tension spring to localize the place as users’ needs and 
simplify the experimental operations and make it more convenient;
  4. Scaffolding structure makes the scaffold separated from the body for 
easy transportation and arrangement;
  5. This is the latest bench model in the market. It is available to open 
the front cover to change filters, electronic components, accessories, etc.