Continuous fire prevention for five mission-critical data halls in Saku, Estonia
FirePASS Europe GmbH has successfully completed and commissioned an advanced Oxygen Reduction Fire Prevention System for a multiroom data center in Saku, Estonia.
The project includes five separate data halls, all protected by FirePASS® oxygen reduction technology. A total of 32 advanced oxygen monitoring units have been installed to monitor oxygen concentrations throughout the protected environments.
This installation demonstrates how oxygen reduction fire prevention can provide continuous protection for mission-critical IT infrastructure, where fire risks, equipment damage and operational interruptions must be minimized.
Unlike conventional fire suppression systems that respond after ignition, FirePASS® is designed to prevent fires from starting in the first place.
Advanced fire protection for multiroom data centers
Data centers are among the most critical facilities in today's digital infrastructure. They house sensitive servers, networking equipment and essential IT systems that support business operations and digital services.
Even a relatively small fire can have serious consequences, including equipment damage, service interruptions, data availability risks and costly recovery operations.
Traditional data center fire protection solutions often rely on early fire detection combined with gas-based or water-based suppression systems. Although these technologies can help control a developing fire, they generally respond after ignition has already occurred.
FirePASS® takes a preventive approach.
By continuously maintaining a precisely controlled, oxygen-reduced atmosphere, FirePASS® creates conditions designed to prevent ignition of relevant combustible materials under specified operating conditions.
This approach is particularly valuable for data centers, where preventing fire damage is preferable to managing its consequences.
Five data halls protected by oxygen reduction technology
The completed installation in Saku consists of five separate data halls, each forming part of the protected multiroom environment.
FirePASS® oxygen reduction technology provides continuous atmospheric control, helping maintain the oxygen concentrations required for the designed fire prevention strategy.
An important feature of this project is the integration of 32 advanced oxygen monitoring units, specifically designed for oxygen-reduced environments.
These monitoring units support the continuous measurement and supervision of oxygen concentrations across the protected areas.
In multiroom data centers, reliable oxygen monitoring is essential because atmospheric conditions must be maintained and verified throughout the different protected spaces.
The combination of oxygen reduction technology and distributed oxygen monitoring provides an engineered approach to fire prevention for complex data center environments.
How FirePASS® oxygen reduction fire prevention works
Under normal atmospheric conditions, air contains approximately 20.9% oxygen. FirePASS® technology reduces the oxygen concentration within a protected environment to a carefully engineered setpoint.
The selected oxygen concentration is determined according to the characteristics of the protected facility, relevant combustible materials, operating requirements and applicable safety standards.
By reducing the availability of oxygen, FirePASS® addresses one of the essential conditions required for combustion.
The system continuously monitors and regulates the protected atmosphere to maintain the specified oxygen concentration.
Unlike conventional fire suppression systems, which activate in response to a detected fire, oxygen reduction fire prevention operates continuously.
This creates an important distinction: FirePASS® is designed to prevent ignition rather than extinguish a fire after it has started.
Key benefits of FirePASS® for data center fire prevention
1. Continuous fire prevention
FirePASS® maintains a controlled oxygen-reduced atmosphere around the clock, helping prevent ignition under the defined design conditions.
2. No water discharge
The fire prevention process does not rely on water-based extinguishing systems, avoiding the risk of water discharge associated with sprinkler or water mist activation.
3. No chemical extinguishing agents
FirePASS® does not depend on releasing chemical extinguishing agents into protected data halls, eliminating the need for agent discharge as part of its normal fire prevention operation.
4. Protection of critical IT infrastructure
By focusing on preventing ignition, oxygen reduction technology helps protect valuable servers, network equipment and supporting infrastructure from fire-related damage.
5. Continuous oxygen monitoring
Advanced oxygen monitoring technology provides ongoing supervision of the protected atmosphere, supporting reliable system control and operational awareness.
6. Supporting business continuity
For data centers, availability is essential. Continuous fire prevention helps reduce the risk of fire-related service interruptions, equipment damage and recovery operations.
Why oxygen reduction is particularly suitable for multiroom data centers
Multiroom data centers present specific fire protection challenges.
Separate data halls may contain different equipment configurations, operating conditions and infrastructure requirements. A fire prevention strategy must therefore consider the characteristics of each protected environment while supporting the overall facility's operational needs.
Oxygen reduction technology offers an alternative to conventional fire suppression by maintaining preventive atmospheric conditions throughout the designated protected spaces.
The FirePASS® installation in Saku illustrates how this technology can be applied to a facility containing multiple data halls, supported by a distributed oxygen monitoring arrangement.
For data center operators, this approach can form an important part of a broader fire safety and business continuity strategy.
Successful commissioning in Saku, Estonia
The successful commissioning of the FirePASS® system represents another completed data center fire prevention project for FirePASS Europe GmbH.
With five data halls protected and 32 oxygen monitoring units installed, the project demonstrates the application of engineered oxygen reduction technology in a multiroom data center environment.
The installation reflects FirePASS®'s focus on continuous fire prevention, precise atmospheric monitoring and the protection of critical facilities.
Protecting data centers before fire starts
As dependence on digital infrastructure continues to grow, data center operators face increasing pressure to protect critical systems and maintain operational availability.
FirePASS® offers a fundamentally different approach to fire protection by addressing the conditions required for ignition rather than relying exclusively on extinguishing a fire after it begins.
The successful project in Saku, Estonia, demonstrates the practical application of oxygen reduction fire prevention technology for multiroom data centers.
FirePASS® — Preventing fire before damage begins.
Discover FirePASS® Data Center Fire Prevention Solutions
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