The Avon-ISI Viking Z Seven SCBA is
designed specifically for fire
service use, with its
flame-resistant straps,
PASS(Personal Alert Safety System),
and all other NFPA required
features, including heads-up display
and complete CBRN protection. The
Avon-ISI Viking Z Seven also
includes intergrated communications,
with voice amplification as a
standard feature, and the patented
AirSwitch technology incorporated
into the facemask.