25
Technical data
Expected operating time of blower unit after being fully charged ( hours ):
NOTE!
Operating time can be decreased if filters
are clogged or battery is undercharged
Internal design of Beta 90 and Delta 90 FreshAir respirators
FreshAir Flow Control
Airflow
140
– 210 l/min
at 8 adjustable flow rates
Weight of the blower unit incl. the
filter and battery
900 g
Noise level
55
– 61 dB
NiMh battery lifetime
500
– 700 charging cycles
Charging time
10
– 14 hours
Belt size
80
– 100 cm
Recommended temperature range 10
– 40 °C
Recommended humidity range
20
– 80 % Rh
Certification
EN 12 941 TH2
Operation time
See the following table
Airflow
Filter
min.
middle
max.
PSL R
X
10 h
X
6
– 7 h
X
4
– 5 h
Summary of Contents for Beta 90 FreshAir
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