Labconco Protecto Ech Filtered Fume Hoods 183 Series 8' - Manuel (Page 69)

Chapter 5: Using the Protector Echo
Product Service 1-800-522-7658 63
Original instructions
 Large objects should not be placed close together and spaced above the
work surface to permit airflow to sweep under the equipment.
 After loading the hood, wait one minute to purge airborne contaminants
from the work area.
Work Techniques
 Keep all materials at least 6 inches inside of the sash, and perform all
contaminated operations as far to the rear of the work area as possible.
 Segregate all clean and contaminated materials in the work area.
 Avoid using techniques or procedures that disrupt the airflow patterns of
the hood.
Final Purging
 Upon completion of work, the hood should be allowed to operate for two
to three minutes undisturbed, to purge airborne contaminants from the
work area before shutting down blower.
Unloading Materials and Equipment
 Objects in contact with contaminated material should be surface
decontaminated before removal from the hood.
 All open trays or containers should be covered before being removed from
the hood.
Shutdown
 Turn off the light and filtered hood fans, then close the sash.