Temperature sensors and BMS dashboards provide useful data, but they rarely show how cooling is actually performing across an entire data hall. This guide explains how operators verify cooling performance in live facilities using rack-level measurements, thermal surveys, airflow visualization, and resiliency testing. By understanding Delta-T patterns and airflow behavior, teams can uncover hidden hot spots, airflow imbalances, and cooling constraints before they impact uptime.

Cooling problems in data centers rarely start with alarms. They usually appear first as small warning signs—uneven rack temperatures, rising fan speeds, unexplained hot spots, or cooling units working harder than expected. This guide outlines ten common indicators that airflow or cooling performance may be limited, helping operators recognize hidden thermal issues before they impact uptime.

This Thanksgiving, Purkay Labs gives thanks for the data center systems and people that keep things cool, efficient, and running 24/7.

A bank’s UPS room faced random battery failures. Using Purkay Labs’ Dynamic Heat Maps, operators discovered hidden hotspots and fixed the problem for good.

This Halloween, Purkay Labs busts five cooling and airflow myths that still haunt data centers — and shows how to keep your facility truly chill.

In this case sgtudy, Purkay Labs identified airflow leaks and imbalances in a new data center, improving cooling efficiency, reducing energy waste, and boosting reliability.

Discover the four delta-Ts that define data center cooling efficiency and how measuring all of them can cut energy costs by up to 40%. Learn how Purkay Labs’ AUDIT-BUDDY delivers fast, rack-level thermal insights without permanent infrastructure.

As AI workloads surge, the power—and heat—inside every rack is growing fast. Here’s what that means for your facility, and how to get ahead of the cooling curve.

Dr. Jack is Back and this time he is de-mystifies delta-T.

Purkay Labs is heading to Data Center World in Washington, D.C. next week!

Our CEO, Indra Purkayastha, and CPO, Aheli Purkayastha, will be attending to connect with fellow data center professionals, explore new technologies, and talk all things airflow and cooling.

This article explores how measuring and optimizing Delta-T across CRAC and CRAH units can improve data center cooling efficiency, reduce energy costs, and enhance airflow management.

Learn key strategies for forecasting and managing cooling costs in data centers, including how to account for seasonal changes, energy price fluctuations, operational growth, and the benefits of investing in energy-efficient technologies. Discover smart budgeting practices that can help optimize cooling expenses while maintaining operational efficiency.

This week, I'm exploring the essential questions every data center manager should ask to ensure optimal cooling and efficiency. From understanding temperature consistency to airflow management and humidity control, I share insights and personal experiences on maintaining the best conditions for both equipment and personnel. Discover practical tips and strategies that can help you enhance your data center's performance and reliability.

Don’t allow recirculated air take down your Chillers. This week on Keep Your Cool, we will be exploring how recirculated air can significantly impact chiller efficiency and overall operational costs.

Learn how a major Colo provider used Purkay Labs’ Thermal Survey service to identify the recirculating air at their rooftop chiller.

As temperatures rise within the data center environment, the risk of heat-related illnesses for technicians and other staff working in the hot aisle increases significantly.  Today we’ll do a deep dive into how you can the Wet Bulb Globe Temperature o influence operator safety. 

As temperatures rise within the data center environment, the risk of heat-related illnesses for technicians and other staff working in the hot aisle increases significantly.  Today we’ll do a deep dive into how you can the Heat Stress Index, or Heat Index, to influence operator safety. 

At Keep Your Cool, we often advocate for raising data center temperatures to improve efficiency and OpEx. However, as temperatures climb, so does the risk of heat-related illnesses for staff in hot aisles, exacerbated by high wattage servers, particularly those fueled by AI. Today, let's explore why measuring heat stress in these environments is crucial for both people and performance.

Gauging your cooling efficiency doesn’t need to be difficult. Today we’ll explore a simple metric - called the Uniformity Metric- and how you can use it to benchmark aisle efficiency.

Preventative Maintenance may seem like a “nice to do,” but should be should be the top of your to-do list. Today we’ll explore a real life case study tracking changes in a data center aisle.