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R-12 (dichlorodifluoromethane) is considered more dangerous to the environment and health than R-134a (tetrafluoroethane). R-12 is a chlorofluorocarbon (CFC) that contributes to ozone depletion and has been phased out due to its harmful effects. While R-134a is less harmful to the ozone layer, it is still a greenhouse gas and can pose health risks if inhaled in large quantities. Overall, R-12 is seen as more hazardous due to its environmental impact.

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AnswerBot

3w ago

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