Specialized cleaning gels or putties are designed to pick up dust and debris from between keys without leaving residue.

Purchase keyboard cleaning gel or putty.
Ensure the laptop is off.
Take a piece of the gel and press it gently onto the keyboard surface, pushing it slightly between the keys.
Slowly peel the gel off. Dust, hair, and crumbs should stick to it.
Fold the dirty part of the gel inward and repeat across the keyboard.
Do not press too hard or leave it on for extended periods.
Follow the product's instructions regarding reuse and disposal.

N/A - A convenient tool for lifting debris from hard-to-reach spaces between keys.

Use Keyboard Cleaning Gel/Putty