Positive Pressure Personnel Suit

Welcome to All Sensors “Put the Pressure on Us” blog. This blog brings out pressure sensor aspects in a variety of applications inspired by headlines, consumer and industry requirements, market research, government activities and you. In this blog we’ll be discussing pressure in protective suits.

Reports of Centers for Disease Control and Prevention (CDC) biolab failures often provide a dramatic picture of a person in a HAZMAT (positive pressure) suit to demonstrate the hazardous environment.  In fact, ventilated and reusable pressurized protective suits are available for use in Bio Safety Level 4 (BSL-4, deathly viruses) laboratories worldwide.

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Source: https://en.wikipedia.org/wiki/Positive_pressure_personnel_suit

According to the U.S. Army Medical Research Institute of Infectious Diseases (USAMRIID), there are four levels of biological containment, with BSL-4 being the highest level. In this environment, personnel must wear positive-pressure suits commonly called “space suits” and breathe filtered air. The air-tight suits are designed for positive pressure to prevent contamination to the wearer even if the suit becomes damaged.

One company offers a ventilated protective suit for BSL4-1 environments that can withstand a 5.4 bar (78.3 psi) pressure and has a valve for continuous adjustment.

Typical use for a BSL 4-1 biohazard suit could occur in industries such as:

  • Chemical
  • Oil and Gas
  • Pharmaceutical

To detect leaks, especially when the suit is used infrequently, periodic pressurized testing must be performed to maintain the integrity if the suit.

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Source: https://en.wikipedia.org/wiki/Positive_pressure_personnel_suit

What do you think/Comments?
Do you have a pressure sensing question? Let me know and I’ll address it in an upcoming blog.
-Han Mai, Senior Marketing Specialist, All Sensors Corporation ([email protected])