Main ingredients: Iron powder (exothermic when oxidized), activated carbon (adsorbs moisture and oxygen), vermiculite (insulates heat), sodium chloride (accelerates the reaction), and water.
Reaction process: Upon tearing open the outer bag, the iron powder comes into contact with air to form iron oxide (rust) and release heat energy. The breathable membrane controls the amount of oxygen ent... moreFoot Warmer https://www.zhongbangbiotech.com/products/foot-warmer.html
Main ingredients: Iron powder (exothermic when oxidized), activated carbon (adsorbs moisture and oxygen), vermiculite (insulates heat), sodium chloride (accelerates the reaction), and water.
Reaction process: Upon tearing open the outer bag, the iron powder comes into contact with air to form iron oxide (rust) and release heat energy. The breathable membrane controls the amount of oxygen entering, achieving constant temperature heating (approximately 40-55℃) with a duration typically ranging from 6 to 12 hours.
Temperature adjustment: Some products can adjust the heating intensity by peeling off the breathable layer. For example, tearing off the outer layer can raise the temperature from 40℃ to over 50℃.
Specification of Foot Warmer
Usage Scenarios of Foot Warmer
Frosty morning commutes? Slide these foot warmers in—cozy heat keeps toes toasty through icy waits and cold rides.
Post-snow shoveling or winter walks? Stick them on—they melt foot chill, turning tired, cold feet to comfy ones.
Cold office days? Tuck them in shoes—steady warmth fights floor chill, keeping feet snug all workday.
Camping in low temps? They wrap feet in heat, warding off frost so you rest easy despite the cold.
Features of Foot Warmer
Targeted heat for toes—small, slim design fits tight shoes, keeping digits toasty without bulk.
Air-activated, 6+ hours of warmth; self-adhesive stays put during walks, runs, or cold commutes.
Safe, low-heat formula—gentle on skin, perfect for winter sports or everyday chill.
Advantages of Foot Warmer
Fast and long-lasting warmth retention It starts to generate heat in about 5 minutes after being torn open, with a maximum temperature of up to 60℃ (direct contact with skin should be avoided). It maintains an average temperature of 40-50℃ for 6-12 hours. For instance, products from Kobayashi Pharmaceutical can stably generate heat for 8-10 hours, while models with mugwort ingredients (such as Fangcun Sanjian) can even maintain a constant temperature of 42℃ for 12 hours.
Portable and easy to use With a compact size (approximately 70×95mm), it can be directly attached to socks or insoles without the need for a power source. Some models are designed in an insole shape, fitting the curve of the sole, and are suitable for sports shoes or snow boots.
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