Among the environmental issues of full body sex doll, the recycling of fat sex dolls faces special challenges. Because the content of plasticizers used is 1.8 times that of conventional models, the efficiency of traditional degradation solutions is reduced by 40%. Experiments by an environmental organization show that the carbon footprint of processing a fat sex doll is equivalent to 3.2 standard full body sex dolls. In order to cope with environmental regulations, manufacturers have to use bio-based materials instead of petroleum derivatives. This technological upgrade has increased production costs by 18%, but it has also won the favor of ESG investors. Some brands of fat sex dolls have achieved a 12% premium sales with environmental certification.