Quick answer
If the room is under 100 sq ft, pick MiniGlow 20". For 144–225 sq ft (most bedrooms and dining rooms), AeroGlow 42" is the right call.
When to choose 20"
Apartments, kids rooms, small bedrooms, and small home offices benefit from the compact 20" form. It's tuned for quiet comfort without dominating a small ceiling.
When to choose 42"
AeroGlow 42" gives full-room airflow and dimmable LEDs for everyday rooms. It's the default for bedrooms above ~120 sq ft and dining rooms.
Room examples
A 10×10 bedroom: MiniGlow 20". A 12×14 bedroom or 12×12 dining: AeroGlow 42". A 10×12 home office: AeroGlow 42" black for design contrast or MiniGlow 20" for tight ceilings.
