Quick answer
Inflate BubbleBum by blowing into the air valve, typically just a few puffs, until the seat is firm and shaped, then close the valve securely. BubbleBum also notes the seat should be used inflated. You can confirm these notes in the BubbleBum FAQ.
Step-by-step: how to inflate BubbleBum
- Unfold the seat and lay it flat.
- Open the valve.
- Blow a few steady puffs until the seat is firm and supportive.
- Close the valve completely.
- Use it inflated (BubbleBum states it should be used inflated).
Want the official specs and guidance in one place? See the BubbleBum FAQ.
How firm should BubbleBum be?
You’re aiming for a firm, supportive feel that provides “boost.” BubbleBum explains that the boost helps children sit more comfortably without slouching forward (slouching can introduce slack and reduce belt effectiveness). See the boost/slouching explanation in the BubbleBum FAQ.
Troubleshooting
Problem: “It won’t stay inflated.”
- Make sure the valve is fully closed.
- Add a little air and check again.
Problem: “My child is still uncomfortable.”
Re-check inflation and belt fit. BubbleBum uses side clips to help position the lap belt and includes a shoulder belt positioning clip for comfort (helping keep the shoulder belt centered on the chest). See the components overview in the BubbleBum FAQ.
Problem: “The shoulder belt keeps rubbing the neck.”
Use the shoulder belt positioning clip so the belt sits across the center chest away from the face/neck (BubbleBum describes this as a comfort feature). Details are in the BubbleBum FAQ.
