A Hazmat suit is a particular piece of clothing worn to protect the body from hazardous substances or materials, such as biological agents, chemicals, high temperatures or hazardous materials. It is usually worn and combined with a breathing device for protection. This suit may be seen worn by emergency personnel, firefighters, researchers, cleaning specialists or by someone working in a toxic environment.

Hazmat Suit Guide

Years ago, Hazmat workers work rubber suits when working when they were working with hazardous materials. Their suits were not gas tight: an elastic band was placed at the wrist to seal the sleeve and a rubber glove was then placed over the hand for protection. Suits like these are not used much more today due to the missing gas tightness need for extra protection.

Four levels of protection are provided by a Hazmat suit: levels A, B, C and D. Suits in the level A are considered total containment and provide protection from all types of chemicals: liquids, solids and gases. A level B suit is not made airtight. it does protect from both liquids and solids, but not gasses or vapors. These Hazmat suits normally do not provide protection from fire or explosions. Level C Hazmat suits are typically worn by firefighters. They consist of a coverall or splash suit and worn along with respirators or gas masks. Level D suits are usually not called ‘Hazmat’ being that they are regular suits used by specific type workers such as mechanics. They simply protect the clothing being worn and do not provide protection from more dangerous chemicals.

Because those who wear Hazmat suits work in dangerous situations, there is the need for the levels of Hazmat suits to make sure every need or circumstance has coverage and protection. A Hazmat suit is made in two different variations: gas-tight and splash protection. Gas tight suits protect from anything other than heat and radiation. Level A suits provide a total enclosure and the greatest level of protection from direct and airborne contact with chemicals. Splash protection suits prevent liquids from contacting the wearer of the suit. These suits do not protect from dust or gases. Hazmat suits considered to be level B are not made vapor-tight; therefore, provide less protection for the wearer.

Working while wearing a Hazmat suit can be very strenuous, as these suits are typically less flexible than conventional working suits are. Hazmat suits can be poorly ventilated and hot. They are normally limited to be worn for short time periods depending on work difficulty. For example, a level A Hazmat suit is limited by its air supply to 15 or 20 minutes of strenuous work and would pertain to such work performed by a firefighter.