During the quest to Obtain the antidote you are able to skip the entire propeller area with the dingbot by using your Lantern on the gate where the antidote is located.

Step 1: Lay down your Dingbot and grab the propeller as you'll need it for puzzles further in the game.

Step 2: Switch back to Agatha and go to the gate where the antidote is.

Step 3: Line yourself up with the antidote and press yourself against the gate.

Step 4: Use the lantern and you'll see the Icon to grab the antidote, this allows you to grab it through the gate skipping the entire propeller area.