air - anti
- air furnace
- air gage
- air gap
- air gap pipe
- air gas
- air gate
- air gateway
- air grating
- air guard
- air gun
- air hammer
- air hardening
- air heading
- air heater
- air heating
- air hold-down
- air holder
- air hole
- air horn
- air hose
- air house
- air impermeability
- air inclusion
- air induction system
- air inflow
- air injection system
- air inlet
- air inlet screen
- air inlet wedge
- air insulation
- air intake
- air intake blank
- air intake diffuser
- air intake duct
- air intake fixed lip
- air intake hazard area
- air intake heater
- air intake line
- air intake surge
- air intake throat