10 steps to close the gap in the containment

Step 7: Protection of the operator during HEPA filter change

Here, too, the system must be designed in such a way that only trained personnel can carry out the procedure and thus ensure that the containment cannot be broken by incorrect treatment.

Additional components must be provided to the filter system, to make a safe, ergonomic and contamination-free filter change according to OEB 1 – 6 possible.

• The lifting table
  makes a safe and ergonomic, simple HEPA filter change process possible
• Bag sealing tools
  make a safe closing of the plastic bag possible, so that it cannot leak anytime.
• Glove in plastic bag
  allows that neither the sealed HEPA filter cassette nor the dirtied filter unit inside can emit dust into the room and contaminate the operator.
• Disposal of sealed HEPA filter cassette in a plastic bag additionally in a fibre drum
  for OEB 5 / 6 levels H10/G HEPA filter cassette types can be sealed additionally as second security in fibre drums. 
Thus the HEPA cassette can be transported in a safe way to the place of disposal or incineration.

The OEB level to be achieved can be proven accordingly during validation.