Spider-Man has frequently crafted a web-gas mask using his webbing in order to prevent himself from succumbing to a toxic gas one his enemies may try exposing him to. The web-gas mask can be worn over his mask or simply on his face, both locations are effective.
|Cover Date||Appearance Information|
|Jun 1968||App: Amazing Spider-Man (Vol. 1) #61|
|Nov 1973||App: Amazing Spider-Man (Vol. 1) #126|