VersaFlow
TM
Compounding Aseptic Isolator
User Manual
24
Filters
Typical life span of a prefilter is 3 months but differing room conditions can require replacement more or less
frequently. During the first 3 months of operation the pre-filter should be checked once per month to determine
the average life span for your facility.
Regular certification will dictate life spans and replacement schedules of the supply HEPA filter. Regular
replacement of the prefilter will lengthen the life of your supply HEPA filter. One digital pressure gauge is an
indicator of differential pressure between the blower inlet and the Supply HEPA filter. It is a qualitative indicator
of the HEPA filter condition. Your certifier should note the starting pressure and monitor it periodically. A large
change in readings in a short time period is indicative of possible failures. Typical HEPA filter life span is 3-5
years. The second digital gauge measures the differential pressure between the interchange Chamber and the
work area.