APTONIA chemical foot warmers, retain heat for 6 hours

Description

APTONIA chemical foot warmers hold heat for up to 6 hours and activate simply on contact with air — no batteries or charging needed. Inside the pouch is a mix of iron powder and activated carbon: contact with oxygen starts a chemical reaction that releases heat. The warmers attach to clothing or sit inside footwear and keep feet warm in cold weather. Before use, open the pouch, shake it and wait about 10 minutes — activation works best at room temperature around +20°C, though it's also possible at 0°C.

Specifications

Heat duration

5–6 hours

Composition

iron powder, activated carbon

Activation time

about 10 minutes

Optimal activation temperature

+20°C (activation possible at 0°C)