Product Details
The N-Ferno® 6990 hand warmer packs are air-activated heat sources that provide up to 12 hours of heat, making them ideal for use in cold environments. These compact and low-profile packs easily fit into gloves or jacket pockets, allowing for instant activation with all-natural ingredients that heat upon exposure to oxygen—no batteries are required. Designed for seamless integration with thermal accessories such as the N-Ferno® 6980 hand warmer muff, hard hat liners, or Proflex 825WP winter work gloves, they are perfect for both workdays and recreational outdoor activities like hunting and hiking. The hand warmers are made from a blend of materials including 65% iron powder, 10.5% salt, 7.5% water, 6% vermiculite, 6% activated carbon, 3% polyethylene, and 2% polypropylene. They are non-toxic, disposable, and not reusable, making them convenient for on-the-go use. The product is particularly beneficial for workers in construction and mining industries who are exposed to outdoor elements, as well as for outdoor enthusiasts engaging in skiing, fishing, or other cold-weather activities.
