Opinions on fast cooling
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In recent years, various brands of car \"quick-cooling\" products have appeared on the market. During hot summers, the seats and steering wheels in cars become extremely hot due to the sun’s rays. Many drivers who have just enjoyed delicious meals in air-conditioned hotel rooms find that sitting in their cars is like entering a furnace after being in a cool environment. While \"quick-cooling\" products can indeed provide comfort, some of them use ordinary refrigerants – namely the highly disliked Freon – which, while bringing coolness, also damage the atmosphere. It is recommended that manufacturers avoid using materials that are destructive to the ozone layer and cause a greenhouse effect.
“\"Cold Fast\" is a good product, but if it does not use environmentally harmful materials, the use of DME poses problems related to its flammability and explosiveness. May I ask experts: how can we ensure the safety of DME when it is used as a material in \"Cold Fast\" products?
VO2 thin films are very promising products