Drier-Dryer | Commonly Confused Words

Drier

/ˈdraɪə/

A device or person that removes moisture from something

/ˈdraɪə/

A machine or device used to remove moisture by applying heat or air.

Drier is the comparative form of dry, indicating something is less wet.
Dryer refers to a household appliance or device used to remove moisture from items like clothes or hair.
Remember: if its an object that dries, its a dryer.
Think of drier as describing a state or condition rather than an item.
When talking about the process of becoming less wet, drier is used.