ÖKO Duo Insulated Purifier Bottle

2-in-1 insulated filtration bottle built for everyday hydration. 2-in-1 Filtration: ✓ Drink filtered water straight from the bottle, sip the built-in filtering straw, or swap in the reusable stainless steel straw. The electro-adsorption membrane, derived from NASA Spinoff research, reduces 200+ contaminants and pops out to filter any glass, tap, or campsite for up to 756 liters — verified in NSF-accredited labs. Insulated Daily Carry: ✓ Double-wall 304 stainless steel keeps drinks hot 12 hours and cold 24 — coffee, tea, or water. Ergonomic rubber-grip cap, retractable silicone-tipped spout, titanium-finish carry handle, and non-slip base, holding 700ml (24oz). Clean water anywhere. No pitchers, no cartridges.