масляний повітряний фільтр
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)
bath operations
laundry and bath support
bath and clothing exchange point
crankcase oil bath air cleaner
air filter
filter-separator
fuel filter
gas-particular filter unit (GPFU)
home-made face filter
individual portable filter
oil filter
RF interference filter
filter stack
military-grade filter
slave oil filter
bag filter
centrifugal oil filter
disk filter
air defense filter center
engine filter
filter cap
filter center
filter head
filter plugging test