Air Activated Warmers
The Heat Factory hand warmer is a soft, lightweight pouch containing a biodegradable mixture of iron powder, charcoal, salt, sawdust and vermiculite. When exposed to the air, an oxidation process takes place that generates heat. Unopened, the Heat Factory Warmers have a shelf life of three years or more.
Heat Factory Battery Powered Hand Muff combines time tested design with modern technology. Embedded with proprietary heat retention & efficient heating elements.
Provides over 6 hours of heat with the included 5 volt lithium-ion battery or provide your own for longer heat. The Battery Powered Toaster Muff from Heat Factory is a valuable addition to your outdoor activities.