Gas Mask

The Gas Mask is an item that has appeared in several episodes of Ed, Edd n Eddy. It belongs to Edd, who uses it in situations that are smelly, or overall repulsive. It was first seen in Over Your Ed, when Ed's vile odor offended Edd, who promptly put on the gas mask. He then sprayed air freshener to get rid of the smell. It's second appearance was in High Heeled Ed, when Edd and Eddy were in the sewer for Eddy's Swamp Rides scam. Edd was repulsed the entire time, thus wearing the gas mask and overalls for the duration of the scam.

Trivia

 * Judging by the design, it is probably a civillian issue gas mask as the filter cartridge is in the front, versus military issue being on the side.
 * When Edd was seen going into the sewer in Boom Boom Out Goes the Ed, he was not wearing it even though he is repulsed by the sewer.