NBC suit

[1] It is a term used in the armed forces and in health and safety, mostly in the context of weapons of mass destruction (WMD) clean-up in overseas conflict or protection of emergency services during the response to terrorism, though there are civilian and common-use applications (such as recovery and clean up efforts after industrial accidents).

In military operations, NBC suits are intended to be quickly donned over a soldier’s uniform and can continuously protect the user for up to several days.

Most are made of impermeable material such as rubber, but some incorporate a filter, allowing air, sweat and condensation to slowly pass through.

A Soviet suit was known as a "Womble" because of its long faced respirator with round visor glasses.

In Canadian terminology, an NBC suit or any kind of similar protective over-suit is also known as a "Bunnysuit".