Primal Air

Primal Air is to elemental air what elemental air is to the stuff you breathe. It is used in a wide range of high-end recipes.

Source
The primary source for Primal Air is by combining 10 motes of air into one Primal Air. Motes of Air are mainly found by dissecting high level air elementals, most commonly those in Nagrand.

Primal Air can also be created through Alchemy with the Transmute: Primal Water to Air recipe.

Common locations for Air Elementals with high mote drop rates are the Elemental Plateau and certain areas in Shadowmoon Valley

As an ingredient
Primal Air is used in the following recipes:

Alchemy

 * Primal Fire by Transmute: Primal Air to Fire
 * Primal Might by Transmute: Primal Might
 * Skyfire Diamond by Transmute: Skyfire Diamond

Blacksmithing
Many of these items require one or another of the specializations, and are Bind on Pickup.

General (Bind on Equip)
 * Felsteel Whisper Knives
 * Storm Helm
 * Swiftsteel Gloves

Requires Swordsmithing
 * Blazeguard
 * Windforged Rapier

Requires Axesmithing
 * Lunar Crescent
 * Skyforged Great Axe
 * Stormforged Axe

Requires Hammersmithing
 * Thunder

Requires Armorsmithing
 * Nether Plate Shirt
 * Stormforged Hauberk

Engineering

 * Foreman's Enchanted Helmet (Goblin Engineering)
 * Gnomish Power Goggles (Gnomish Engineering)
 * Ultrasafe Transporter: Toshley's Station (Gnomish Engineering)
 * Gyro-Balanced Khorium Destroyer

Leatherworking

 * Belt of the Black Eagle (LW 375)
 * Bindings of Lightning Reflexes (LW 375)
 * Boots of the Crimson Hawk (LW 375)
 * Cobrascale Gloves (LW 365)
 * Cobrascale Hood (LW 365)
 * Drums of Speed (LW 345)
 * Felstalker Belt (LW 350)
 * Felstalker Bracers (LW 360)
 * Felstalker Breastplate (LW 360)
 * Netherstrike Belt (Dragonscale Leatherworking) (LW 375)
 * Netherstrike Bracers (Dragonscale Leatherworking) (LW 375)
 * Netherstrike Breastplate (Dragonscale Leatherworking) (LW 375)
 * Primalstorm Breastplate (Elemental Leatherworking) (LW 375)
 * Thick Netherscale Breastplate (LW 365)
 * Windhawk Belt (Tribal Leatherworking) (LW 375)
 * Windhawk Bracers (Tribal Leatherworking) (LW 375)
 * Windhawk Hauberk (Tribal Leatherworking) (LW 375)
 * Windscale Hood (LW 365)
 * Windslayer Wraps (LW 365)
 * Windslayer Gloves

Leg-only Armor Kits
 * Cobrahide Leg Armor (LW 335)
 * Nethercobra Leg Armor (LW 365)

Tailoring

 * Vengeance Wrap

Enchanting

 * Cat's Swiftness
 * Greater Agility (cloak enchant)