When sourcing inflatable dolls, the most critical factor is material safety and compliance. You must ensure the products are made from medical-grade TPE (Thermoplastic Elastomer) or high-quality Silicone, which are non-porous and skin-safe. For the European market, products must comply with REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals) to ensure they are free from harmful phthalates. For the US market, adherence to California Proposition 65 regarding chemical exposure is highly recommended to avoid legal risks.