1 4 dioxane and ethylene oxide may be found as legally tolerated contaminants in household products this attitude product does not contain these by products listed as carcinogenic to humans by the international agency for research on cancer group 1 or 2 certified eco friendly carcinogen 1 4 dioxaneethylene oxide free tested in independent laboratory 60ml concentrated co2 neutral septic tank safe vegan product co2 neutral attitude is manufactured using 100 renewable energy and