The air volumes/air speeds are as follows on the Blowers/Vacuums and Blowers:

BV1000 195 mph
BV2500 200 mph

BV3100 210 mph
BV4000 230 mph

BV6000 250 mph

BV6600 250 mph

CS100 120 mph
NS118 120 mph
FT1000 140 mph