Iron Lungs is a Manga/Manhwa/Manhua in (English/Raw) language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

In a hyper-industrialised future, Lilac Akita lives her days in a hospital, inflicted by an illness that has rendered her legs useless. However, things change when an eccentric scientist approaches her with the opportunity to pilot a new type of weapon: the Iron Lung.