The Swedish word for air is
luft

Translations for air and their definitions

lufta
1. v. to air (a room or the like)
2. v. to air (bring out into the fresh air, of a pet or the like)
3. v. to air (opinions)

vädra
1. v. to ventilate, to air, to let the wind blow, to expose for fresh and open air
2. v. to open the window and let fresh air inside
3. v. to hang garments or rugs outdoors for some fresh air
4. v. to debate, to let one's opinions out
hon vädrade sina åsikter
: she let her opinions out
Michail Chodorkovskij dömdes till fängelse 2005 efter att han vädrat politiska ambitioner.
: Mikhail Khodorkovsky was sentenced to prison in 2005 after he had aired political ambitions.
5. v. to sniff, to scent, to smell for scents blowing in the wind, to breathe
vädra morgonluft
to breathe the fresh morning air (to see one's lucky star on the rise)
6. v. (dialectal) of the wind: to blow
Det vädrar ordentligt idag.
It's really windy today.