Critical Environments

Comprehensive Room Pressurization and Fume Hood Control Solutions

Precise Airflow and Pressurization Keep Critical Environments Safe

We deliver true airflow measurement and exact pressurization control that have led the way in life safety for Laboratories, Health Care settings, Vivariums, and Clean Room manufacturing for almost 30 years. Our experts understand critical environment spaces and their regulations inside and out, often serving on the committees that develop codes and standards. We combine this unmatched expertise with industry-leading, flexible technology that’s engineered to meet your specific needs as well as the most-demanding life safety requirements. At the same time, we help you take advantage of energy savings opportunities that can be implemented without affecting compliance.

Siemens Critical Environment solutions easily integrate into your building automation system and are especially designed for room pressure control, ventilation and general extractions, laboratory fume hood control, and room air conditioning. You’ll experience benefits that include:


  • Highest safety, efficiency, and productivity
  • Design flexibility based on modular space concepts
  • High reliability and availability from proven components

We back our Critical Environment products and solutions with services that keep your critical environments in compliance as their uses evolve and regulations are updated. We can also help you make your critical spaces more energy efficient. Our Total Room Automation solution, for example, controls the temperature, climate, lighting, and blinds in a way that helps reduce energy use in the laboratory or other critical room environments.

Lab/Room Pressurization and Airflow

Our industrial-grade airflow measurement and pressurization control solutions for laboratories and critical rooms are pre-packaged and easy to install. Features include:

  • True airflow measurement
  • Fast-acting or standard electronic actuation
  • Multiple sizes and configurations to match critical environment supply and exhaust duct requirements
  • Material and coating options for highly corrosive environments
  • Venturi Air Valve or Terminal (damper blade) package options

Fume Hood Control

Our patented standalone Direct Digital Control (DDC) System for Variable Air Volume (VAV) control is the proven choice for laboratory fume hoods. Features include:

  • Uses true exhaust flow measurement to monitor safe operation and provide fine flow control
  • Provides constant face velocity
  • Maintains programmed minimum exhaust flow
  • Uses PID closed-loop control for all control devices
  • Supports damper, VFD and Venturi Air Valve control devices, DP or linear flow measurement

Room Condition Monitors

You can rely on our room condition monitors for critical low-differential pressure applications that require stringent pressure monitoring and alarming. The Room Condition Monitors:


  • Provide true pressure measurement in both positive and negative application settings
  • Send alarms when the pressure is going out of compliance
  • Can also monitor other environmental parameters, such as temperature and humidity
  • Support multiple rooms at the same time