Gas Mask Hoods – Everything You Should Know
Sometimes also called escape respirators, gas mask hoods serve a key purpose that is to allow an untrained civilian to quickly and safely get away from an area that may have a chemical, biological, or even radiological or nuclear threat present. These protective hoods were made by a product line manager for that company’s PPE gear.
When you open it from its case, it automatically comes on. A fan system pulls air through filter both a HEPA filter as well as a carbon one and then fills the hood with clean air. Air also exits through a valve located elsewhere on the hood. The red LED you may have seen in photos shows that it’s on. You can check out the latest designs in gas mask hood on https://www.gasmaskpro.com/gas-masks/civilian-adult-nbc-protective-hood-and-blower-system.
The hood forms a seal around the wearer’s neck, but the system also creates a positive pressure gradient between the inside of the hood and the outside air meaning that air wants to flow outward from the protective gear, and not into it. That helps prevent contaminants from getting in even if someone’s long hair, for example, gets caught in the area where it seals against the neck. Unlike a true spacesuit, it’s not designed to be tightly sealed off from the environment.
This item comes in two varieties: one that also protects against carbon monoxide and one that doesn’t. The acronym CBRN is a common term referring to chemical, biological, radiological, and nuclear threats, and “30” in this case references the time period it’s intended to protect the wearer for: 30 minutes.