Server Airflow Management Solutions
Seal airflow leaks, cut cooling costs, and protect your servers with Eziblank blanking panels. Our modular, tool-free panels prevent hot air recirculation in server racks, improving cooling performance across all data centre environments, enterprise, colocation, or hyperscale.
What Is Server Airflow Management and Why Does It Fail Without Rack Sealing
Server airflow management is the process of controlling how air moves through and around server racks to maintain stable intake temperatures and efficient cooling performance. When airflow is unregulated, such as in racks with open U-spaces or cable gaps, hot air recirculates and bypasses the intended cooling paths. This leads to energy waste, inconsistent equipment cooling, and server performance risks.
Even modern data centres with precision cooling systems often suffer airflow inefficiencies because of small but critical issues like unsealed rack units or unsealed side rails. These overlooked gaps disrupt airflow containment strategies like cold aisle or hot aisle setups.
Eziblank blanking panels are designed to snap directly into unoccupied U or SU spaces without tools. They block airflow leaks, force cold air through IT equipment, and enable measurable energy savings. They are designed to improve cooling performance by eliminating airflow inefficiencies at the rack level.
Our Blanking Panels for Data Centers
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19″ 6RU Universal Blanking Panel
Price range: $186.00 through $200.00 AUD -
21″ 10SU Universal Blanking Panel for ETSI Rack
Price range: $240.00 through $250.00 AUD -
23″ 6RU Universal Blanking Panel
$250.00 AUD -
19” 6RU Standard Blanking Panel
Price range: $145.00 through $186.00 AUD -
New 19″ 6RU Universal Blanking Panel
How Airflow Inefficiencies in Server Racks Drive Up Cooling Costs
Cooling inefficiencies often start at the rack level. Even in highly engineered data centres, small, unsealed openings between equipment or unused rack units allow cold air to bypass IT hardware and mix with hot exhaust air. This recirculation effect forces cooling systems to work harder, increasing power consumption and reducing the thermal performance of the environment.
Raised floors and perforated tiles often cannot compensate for poor rack airflow control. Studies show that even a 1/16 inch gap between mounting rails and cabinet edges can introduce over 45 square inches of leakage in a standard 42U rack. Multiplied across multiple racks, this results in significant bypass airflow.
This is a measurable cost driver. For every 1°C increase in supply temperature, made possible by proper airflow sealing, data centres can achieve up to 4 percent in energy savings. Without effective airflow management, energy costs remain higher, and thermal zones stay unstable.
Eziblank panels eliminate these inefficiencies by sealing off every unoccupied rack space. Combined with brush grommets and air containment accessories, they convert passive airflow loss into a controlled, efficiency-focused system.
Why Eziblank Blanking Panels Are the Smartest Choice for Airflow Sealing
Eziblank blanking panels are engineered for data centre applications where airflow containment and reliability are required. Designed for EIA-310-D and ETSI-compliant racks, they are manufactured from flame-retardant ABS plastic (UL94-V0) for safety, compliance, and sustainability.
The panels feature a tool-free, modular snap-on design that makes installation fast and disruption-free. Whether sealing 19-inch, 21-inch, or 23-inch racks, Eziblank fits with precision and can be reused during hardware changes or rack reconfigurations.
Key product advantages:
- Modular and reusable for dynamic rack layouts
- Tool-free installation with snap-in fit
- Compatible with common rack standards and sizes
- Supports accessories like universal catch mechanisms
Eziblank offers more than a panel. It provides a complete airflow containment solution that eliminates recirculation, reduces cooling load, and supports longer equipment lifespan. It is built to streamline operations for data centre professionals and infrastructure teams.
How to Implement Effective Airflow Management with Eziblank
Optimising airflow in server environments does not require major infrastructure changes. Eziblank panels are designed for fast deployment in live data centres, enabling airflow improvement within existing rack configurations.
5-step airflow optimisation checklist:
- Assess airflow weak points, including open rack units, cable pass-throughs, and side gaps
- Install Eziblank panels in all unused U spaces
- Seal gaps around equipment rails using side seals or compatible accessories
- Apply brush grommets to raised floor tiles for cable penetration points
- Monitor airflow performance using sensors or airflow visualisation tools
This process can reduce hot air recirculation by more than 80 percent at the rack level. It also enables higher set point temperatures, reduced fan speeds, and measurable reductions in cooling energy use.
Eziblank panels provide the physical airflow control required to achieve these benefits, with precision-engineered components that align with operational demands in enterprise and hyperscale environments.
Get a Free Quote for Eziblank Panel Kits
Our technical team provides airflow assessments and blanking panel recommendations based on your current configuration. We calculate the number of required panels, guide the sealing process, and provide insight into potential energy savings and thermal performance improvements.
If your facility runs in a high-density or high-ambient environment, airflow control becomes even more important. Eziblank solutions are designed to work in a range of global climates and are trusted by data centre operators across North America, Europe, and Asia.
Contact us to request a quote or airflow audit. We will help you secure your racks, stabilise your thermal zones, and achieve long-term cooling efficiency.