Anti-Dioxin Filter

The Anti-Dioxin Filter is a ship part in Pikmin. It fits on a rocket's exhaust port and filters disease-carrying agents from the ship's exhaust. It prevents a ship from polluting a planet's atmosphere, making Captain Olimar feel better. After being collected, this ship part wraps around the S.S. Dolphin's hull, and the square hole in the center goes around the main hatch. The rim that encircles the hull goes around just underneath the cockpit and Gluon Drive, meaning that this part is found upside-down in relation to its appearance on the ship.

Collecting the part
The Anti-Dioxin Filter is located in the large lake area of The Forest Navel. Withdraw at least 40 Blue Pikmin and a group of Red Pikmin. Travel to the lake area, where Olimar needs to defeat all the Wollywogs to ensure the Blue Pikmin's safety. Then, either keep the Red Pikmin waiting for your Blue Pikmin to get the part out of water or defeat all of the Fiery Blowhogs so the Blue Pikmin can carry the part back to the landing site.

While unintentional, this part can be collected even if the player has only 4 Blue Pikmin with them. By having Captain Olimar lie down behind the Anti-Dioxin Filter, the Pikmin that carry him will push the part as they go, eventually dragging it out of the water, where other Pikmin can take it back.

Trivia

 * In real life, s are a group of polyhalogenated compounds which act as environmental pollutants. This part is the equivalent to the of an automobile.
 * This ship part is called the Non-Dioxin in a few places:
 * In the final results menu in.
 * In the Official Nintendo Player's Guide.