exhaust filter (reduces aicrafts’ infrared visibility)

band-pass filter / bandpass filter (BPF)

dust filter / dust shield, particle filter

dust shield / dust filter, particle filter

filter housing / filter unit

filter unit / filter housing

particle filter / dust shield, dust filter

finite impulse response filter (FIR-filter)

passband filter; bandpass filter (BPF)

adverse or limited visibility

conditions of reduced visibility

in-transit visibility (ITV)

limit of visibility

moderate visibility

poor visibility

total asset visibility (TAV)

visibility

zero visibility

visibility of aim

bad-visibility accident

runway visibility

visibility meter

visibility reduced conditions

aerodrome ground visibility

reduced visibility

restricted visibility

fair visibility

flight visibility

horizontal visibility

low visibility

low visibility landing

low visibility takeoff / take-off

low-visibility conditions