What’s in a pack? What makes it work?

Our HeatMax® family of air activated warmers all contain a mixture of natural ingredients that when exposed to air react together to produce heat.

This is accomplished through an extremely fast oxidation (or rusting) process.

Ingredients include: iron powder, water, salt, activated charcoal and vermiculite.

HeatMax® has perfected the process so that our warmers, depending on the individual product, produce heat anywhere from 100°F to 180°F for durations of 1 to 20+ hours.