Purair Basic ductless fume hoods and chemical processing workstations are available in 3 standard widths, 2 depth options, in metal or polypropylene construction, totalling 12 standard models.
A. Filter I.D. Window: A convenient, strategically placed front cover window shows the installed filter part number and installation date to encourage timely filter replacement.
B. Control Panel: Electronic controls and displays include switches for the blower and low airflow alarm.
C. Airflow Alarm: Low airflow alarm continuously monitors filter loading and alerts user when service is needed.
D. Air Velometer: An optional analog air velocity meter is positioned in the user's field of vision.
E. Steel Support Frame: The chemical resistant epoxy coated steel frame adds mechanical strength. Optional all polypropylene construction is available if desired; see Purair P5-24-XT, shown with optional mobile cart.
F. Hinged Front Sash: When closed, the cabinet sash protects the contents from inadvertent external contact and better isolates the air within. The sash is easy to open and close.
G. Work Surface: The internal work surface can be fitted with an optional polypropylene (available in white and black) or stainless steel tray; see accessories.
H. Pass Through Ports: Electrical cords and cables are safely routed into the cabinet through ports on the back.
I. Electrostatic Pre-Filter: The electrostatic pre-filter is accessible from inside the chamber and 91% effective down to 1-3 microns.
J. Filter Door Key: Filter access keys prevent unauthorized removal or accidental exposure to dirty filters.
K. Dynamic Filtration Chamber: The dynamic filter chamber prevents any possible leakage of contaminated air by pressurizing the fan plenum (positive air) and depressuring the filter compartment (negative air).
L. Internal Manual Speed Controller: Authorized personnel may set the EC blower speed as desired.
M. Stand: Optional mobile cart with locking casters.
N. Safety Filter: The optional carbon or HEPA/ULPA safety filter adds an additional layer of protection.