Labconco 3970202 User Manual - page 26

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Chapter 4: Performance Features and Safety Precautions

sure that the blower is operating and periodically ensure 

that air is flowing through the enclosure at its specified 

downflow velocity of 30 to 65 fpm.  The use of an airflow 

monitor is recommended to alert the user to a problem with 

airflow. 

2.  Use good housekeeping in the enclosure at all times.  Clean 

up spills immediately.  Periodically clean enclosure 

interior. 

3.  Do not overload the work surface with apparatus or work 

material.   

4.  The Purifier Filtered PCR Enclosures should never be used 

with biohazardous materials, toxins, acids, or radionuclides.  

Air from the work area is dispersed directly into the 

laboratory from the enclosure.  A qualified Safety Officer 

must carefully assess any risk associated with the use of the 

Purifier Filtered PCR Enclosure. 

5.  Always work with your hands as far back into the enclosure 

as possible.  Keep all materials and apparatus inside the 

lower air foil of the enclosure. 

6.  Do not work in this enclosure without the blower running.   

7.  Perchloric acid use in this enclosure is prohibited. 

8.  Radioactive materials are prohibited in this enclosure.  

Consult your Safety Officer. 

9.  Avoid cross drafts and limit traffic in front of the enclosure.  

Air disturbances created may disturb Class 5 conditions. 

10. A qualified certification technician should test the 

enclosure before it is initially used.  The enclosure should 

be validated annually and whenever it is relocated. 

11. The sash must remain in the down position while using the 

enclosure. 

12. The HEPA filter provides Class 5 clean air conditions and 

only provides product protection inside the enclosure. Do 

not use the enclosure for personnel protection. 

13. Never use flammable gases or solvents in the enclosure.  

Use of an open flame must be avoided in the enclosure.  

Open flames may disrupt the airflow patterns in the 

enclosure, burn the HEPA filter and damage the filter’s 

adhesive.  Gases under high pressure should not be used in 

the enclosure as they may disrupt airflow patterns.