Labconco 3940200 User Manual - With The Bag-In/bag-Out

46 

Chapter 6: Maintaining Your Filtered Enclosure 

How to Install a New HEPA Filter 

with the Bag-In/Bag-Out 

Procedure for XPert Filtered 

Balance Systems and Stations 

The XPert enclosures include a true bag-in/bag-out filter disposal 

system for safely removing the HEPA filter and protect the worker 

from toxic powders and particulates.  See Figures 6-1 for the Bag-

In/Bag-Out Procedure.  For your safety, wear appropriate personal 

protective equipment during the change of HEPA filters.  If 

working with biohazardous materials, use the decontamination 

procedure outlined in Chapter 6.  (Consult your Safety Officer 

before performing filter changes). 

1.  With the enclosure OFF, remove the front panel secured by 

two screws on top of the enclosure. 

2.  Remove the bungee cords and retaining strap on the bag 

and extend it out.  The retaining strap provides an extra 

level of safety even though the enclosure is under negative 

pressure when the blower is on. 

3.  Loosen the two filter clamp bolts with a 9/16" socket 

securing the HEPA filter.  See Figure 4-1 and 4-2. 

4.  Place both arms in the rear gloves of the bag, and carefully 

draw the HEPA filter out of the enclosure.  Rest the HEPA 

filter on the floor, table or cart.  Remove arms from bag 

gloves. 

5.  Create two seals between the enclosure bag access port and 

the old HEPA filter.  Seals can be heat sealed or sealed 

with tie wraps.  Cut off the bag between the two seals and 

leave the bag stub on the access port to the enclosure. 

6.  Place the new HEPA filter in the new bag.  Then place the 

new bag and new HEPA filter over the old bag stub and 

onto the enclosure access port. 

7.  Carefully remove the old bag stub using the single glove 

near the access port.  Reattach the retaining strap on the 

perimeter of the new bag at the enclosure access port.  

Draw the old bag stub into the single glove and turn the 

glove inside out.  Double seal this glove and cut off the 

glove with the contaminated bag stub inside. 

8.  Carefully install the new HEPA filter and uniformly tighten 

the two filter clamp bolts until the HEPA filter gasket is 

compressed 50%.