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Air (previously Bubble)
Oie transparent (2)
Air inside its bubble
Name Air (previously Bubble)
Relatives BMO (fiancée)
Introduced in "BMO Lost"
Latest appearance "I Am a Sword" (mentioned)
Voiced by LeVar Burton

Air (previously Bubble) was a lost bubble who appeared in "BMO Lost." Once BMO found itself lost in a forest, Bubble brought itself up to help BMO back to the Tree Fort. Bubble first met BMO when it tumbled down a hill and cracked its face plate. Bubble then emerged from a cracked mug and said it had been lost in the forest for a long time, and was feeling the need to give up. However, BMO's determination to get home kept up Bubble's mood. After some trials and spending so much time together, Bubble and BMO developed a friendship, making Bubble feel no longer lost and instead more at home with BMO.

At the end of "I Am a Sword," BMO says "I like Air" when Jake suggests they go outside for some fresh air.


As the name suggest Bubble's first appearance was that of a bubble, a liquid sphere enclosing air or gas. It has two dots for eyes, a mouth and a tongue. It was also capable of blushing. After being popped by Jake, Bubble's insides became one with the air, an invisible gaseous substance, but it could still communicate with BMO.


When Bubble was first introduced it asked if it could wallow with BMO who appeared to have given up after tumbling down a hill. Bubble stated it thought about giving up on things and even accepted getting potentially eaten by a carnivore. But when BMO perked up, Bubble's mood shifted to match and it journeyed with BMO to find its home. Gradually it began to become fearful of the forest and at one point hid behind BMO for protection against the carnivores it claimed existed. When they found a baby and BMO asked about the baby's name, Bubble said that his name should be Sparkle, but BMO overrode the suggestion by calling the baby Ricky, causing Bubble to be visibly disappointed. Bubble showed selflessness when BMO and the baby were in danger of going over a waterfall; Bubble didn't hesitate to attempt a rescue. Also, it was more concerned about the baby getting back to his mother, and told BMO to "let go."

When BMO was feeling down Bubble tried to cheer it up by telling it about a clear path to BMO's home. Upon arriving at the Tree Fort, Bubble felt the urge to confess his feelings about BMO, and proposed, even though it didn't understand what marriage meant. When BMO accepted, Bubble was ecstatic and laughed happily. Now as "Air," Bubble still wants to be around BMO forever.


I'm a bubble.

—"BMO Lost"

No, see, that's what's so great. Now we can be together forever, BMO. Every minute of every day. No more privacy, no more quiet, no more alone. Every room you ever go in, I'll already be there, waiting, forever and ever, until the end of time.

—"BMO Lost"


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