Luftfilter
air filter
Zuluftfilter
fresh air filter
supply air filter
supply filter
Hüfthalter
girdle
Luftholen
gasp
Lufthunger
shortness of breath
Luftlager
air bearing
Luftmine
blockbuster
Abluftgitter
exhaust air grille
return air grille
Luftbild
air photograph
Luftlinie
as the crow flies
beeline
Luftnummer
flop
washout
Lüfter
fan
blower
Zuluftgitter
inlet grille
supply air grille
Huftier
ungulate
Tüftler
handyman
tinkerer
aufteilen
portion
Ultrafilter
ultrafilter
Biofilter
biofilter
Filter
filter
Netzfilter
line filter