Also even if there's a prop 65 warning because there are cancer-causing ingredients, those ingredients may not be user-accessible or may be in tiny enough quantities that they'd statistically never result in cancer even with lifetime use by every human on the planet. E.g. lead in a circuit board inside an IP-68 rated sealed device would require a prop 65 warning even though it won't pose any cancer risk to the user unless they grind up the device & ingest or inhale the lead.