top of page

Reducing Data Center Energy Costs: How HVAC Optimization Cuts Carbon Emissions

Learn how data centers can cut energy costs and carbon emissions through HVAC optimization and smarter cooling strategies.

Ava Montini

Jan 28, 2025

Written by 

Published on

Tags

Data centers are the invisible engines driving our digital economy, supporting everything from video streaming to cloud computing and e-commerce. However, they have an enormous energy footprint. In particular, cooling systems—designed to prevent overheating and ensure server performance—are among the most energy-intensive components of these facilities.


By examining the nuances of cooling challenges, the role of HVAC filters, and real-world solutions, let's explore how data centers can significantly reduce energy costs and carbon emissions without compromising performance.



The Energy-Intensive Nature of Cooling in Data Centers

Walk into a typical data center, and you’re greeted by the constant hum of servers, each generating heat as they operate 24/7. Managing this heat load is critical to prevent server failure, downtime, or even catastrophic equipment damage. Yet, cooling systems, while essential, consume a staggering amount of energy.


Why Cooling is So Energy-Intensive


  1. Relentless Operation

    Unlike commercial office buildings or industrial facilities, which have peak and off-peak times, data centers require continuous cooling. The need for uninterrupted service means cooling systems operate at full capacity 365 days a year.


  2. Dense Heat Loads

    Modern servers pack immense computational power into small physical footprints. As server density increases, the amount of heat generated per square foot skyrockets. High-density data center racks can indeed generate heat loads exceeding 30 kW per rack, while traditional systems typically range between 5 to 10 kW per rack. This significant increase in power density presents challenges for cooling and energy efficiency.


  3. Cooling System Inefficiencies

    Many data centers still rely on older HVAC technologies designed for less demanding environments. These systems often lack advanced features like variable-speed drives or intelligent controls, resulting in wasted energy.


  4. Air Distribution Challenges

    Poorly designed airflow management leads to inefficiencies. Hot spots in the server room can force cooling systems to overcompensate, driving up energy use.


The Scale of Energy Use

The average data center consumes between 10 and 50 megawatts of power annually, with cooling alone accounting for 30-40% of this usage. According to the Uptime Institute, cooling inefficiencies represent one of the biggest opportunities for energy savings in data centers.


Filters

The Overlooked Hero of HVAC Efficiency

When it comes to cooling system optimization, much attention is given to technologies like liquid cooling or airflow containment. However, the role of air filters is often underestimated. These small, replaceable components significantly influence how efficiently HVAC systems operate.


How Filters Impact Energy Consumption

Filters are designed to trap particulate matter, dust, and contaminants, ensuring clean air circulates through data centers.


However, not all filters are created equal:

  • High-Resistance Filters: Traditional pleated filters create substantial resistance in airflow, forcing HVAC fans to work harder to push air through the system. This increases energy demand and operating costs.

  • Low-Pressure Drop Filters: Advanced filters with low-pressure drop technology reduce airflow resistance, enabling cooling systems to maintain efficiency while consuming less energy.


The Domino Effect of Poor Filtration

Using inefficient filters doesn’t just waste energy—it creates a ripple effect of operational problems:


  • Increased Wear on Fans and Motors: Higher resistance shortens the lifespan of HVAC components.

  • Hot Spot Risks: Poor airflow management leads to uneven cooling, forcing systems to overwork.

  • Dust Accumulation: Ineffective filters allow particulate matter to settle on server components, increasing the risk of overheating and equipment failure.


Real-World Benefits of Optimized Filters

Implementing advanced filters tailored for data center environments yields measurable benefits that go far beyond energy savings.


1. Energy Savings at Scale

Switching to low-resistance filters can reduce HVAC energy consumption by, on average, 15%, depending on the system's configuration. For large-scale data centers, this translates to savings in the hundreds of thousands annually.


  • Case Study

    A California data center upgraded its filters and saw a 15% reduction in HVAC-related energy use within a year, saving over $75,000 while cutting its carbon emissions by 300 metric tons—equivalent to planting 5,000 trees.


2. Prolonged Equipment Lifespan

Cleaner air leads to less strain on HVAC systems and server components. Advanced filters trap contaminants that would otherwise accumulate on heat exchangers, fans, and server hardware, reducing maintenance costs and prolonging equipment life.


3. Enhanced Cooling Performance

By improving airflow dynamics, optimized filters eliminate hot spots and ensure consistent cooling throughout the facility. This stabilizes operating temperatures, improving server reliability and reducing unplanned downtime.


4. ESG Alignment and Carbon Reduction

As corporations face increasing pressure to meet environmental, social, and governance (ESG) goals, HVAC optimization offers a practical path forward. According to the U.S. Environmental Protection Agency, for every megawatt-hour saved, data centers can reduce their carbon emissions by approximately 0.4 metric tons.


Beyond Filters

A Comprehensive Approach to Cooling Efficiency


While advanced filters are a game-changer, they are most effective when integrated into a broader cooling optimization strategy.


1. Airflow Containment Systems

Hot aisle/cold aisle containment ensures efficient airflow management by separating hot and cold air streams. This reduces the workload on HVAC systems and improves overall energy efficiency.


2. Smart Cooling Controls

AI-driven cooling technologies can monitor temperature, humidity, and airflow in real time, adjusting HVAC performance to meet dynamic needs. Pairing smart systems with advanced filters amplifies efficiency gains.


3. Transitioning to Renewable Energy

Integrating renewable energy sources, such as solar or wind, with efficient cooling systems further reduces a data center’s environmental footprint.


A Vision for Sustainable Data Centers

The story of data centers is one of both opportunity and responsibility. As the backbone of modern technology, these facilities have an obligation to operate sustainably. Advanced air filtration represents a simple yet powerful lever for change, enabling data centers to reduce energy demand, enhance reliability, and align with global climate goals.




Small changes can lead to big results. Advanced filters, though often overlooked, can redefine the energy efficiency of data centers. Coupled with strategic airflow management and cutting-edge technologies, they are key to transforming data centers into models of operational excellence and sustainability.

How to Eliminate Office Odours – Your Guide to A Clean Office

Writer's picture: Jennifer CrowleyJennifer Crowley
Modern white office space with a wall of floor to ceiling windows,  black doors, shelving and chairs
Eliminating office odours is crucial for maintaining a pleasant and productive work environment.

A pleasant and fresh-smelling office environment is crucial for employee morale and productivity. Unpleasant office odours can create discomfort and distractions, negatively impacting the overall work atmosphere.

In this blog post, we will explore effective solutions for eliminating various office odours that commonly arise. By implementing these strategies, you can create a more pleasant and inviting workspace for everyone.


Bathroom Odours

Bathrooms are notorious for harbouring unpleasant smells. Here are some tips to combat bathroom odours in the office:

Small washroom toilet and sink with female arm spraying an air freshener spray
Proper ventilation is essential for preventing odour accumulation.
  1. Regular Cleaning: Ensure that the bathroom is cleaned thoroughly and frequently. Pay extra attention to toilets, sinks, floors, and any other surfaces prone to odour buildup.

  2. Adequate Ventilation: Proper ventilation is essential for preventing odour accumulation. Install air fresheners or use natural alternatives like essential oil diffusers or fresh plants.

  3. Odour Neutralizers: Odour neutralizers, such as activated charcoal or baking soda, are essential items to keep in your bathroom. These substances work effectively to absorb and eliminate unpleasant smells, ensuring a consistently fresh and inviting atmosphere in your restroom.


Breakroom Odours

The breakroom is a common area where food odours can linger. Follow these steps to tackle breakroom odours effectively:

Communal office space with two employees eating pizza, drinking water and watching a movie
Encourage employees to clean up after themselves promptly.
  1. Encourage Cleanliness: Encourage employees to clean up after themselves promptly. Clear policies about cleaning up spills, refrigerating food properly, and disposing of waste can help prevent odour issues.

  2. Proper Ventilation: Ensure the breakroom has adequate ventilation to dissipate food odours. Open windows or install ventilation fans if necessary.

  3. Regular Cleaning and Maintenance: Establish a routine cleaning schedule for the breakroom, including wiping down surfaces, emptying garbage bins, and cleaning the microwave or refrigerator.


Other sources of breakroom odours can derive from:

Sink odours: Sinks can develop unpleasant odours due to food particles and bacterial growth. Here’s how to address sink odours effectively.

Fridge odours: Unpleasant smells can quickly develop in refrigerators due to spoiled or forgotten food items. Follow these steps to keep your office fridge smelling fresh.


Eliminate Office Carpet Upholstery Odours

Carpets and upholstery can absorb various odours over time. Consider the following tips for freshening up your office’s soft surfaces:

Beige carpet with a black upright vacuum on top with two female feet standing on the edge of the carpet
Use a vacuum cleaner with a HEPA filter for the best results.

  1. Regular Vacuuming: Vacuum carpets and upholstery frequently to remove dust, dirt, and odour-causing particles. Use a vacuum cleaner with a HEPA filter for the best results.

  2. Spot Cleaning: Attend to spills or stains on carpets and upholstery promptly. Blot the area with a clean cloth and use a mild detergent or specialized cleaners designed for specific fabrics.

  3. Professional Cleaning: Schedule professional deep cleaning for carpets and upholstery at regular intervals to remove deep-seated odours and rejuvenate the fibres. Professional cleaning methods, such as steam or dry cleaning, can effectively eliminate odours and refresh the appearance of the carpet and upholstery.


Trash Can Odours

Trash cans can emit unpleasant odours, especially when filled with food waste or other organic materials. Follow these steps to keep trash can odours at bay:

Stainless steel garbage can with the lid open awaiting a white napkin to be dropped inside with a white subway tile backdrop
Regularly clean and disinfect trash cans to eliminate lingering odours.

  1. Regular Emptying: Empty trash cans regularly to prevent the buildup of odorous waste. Establish a schedule for emptying and ensure that employees adhere to it.

  2. Proper Bag Sealing: Double-bagging trash or using heavy-duty garbage bags can help contain odours. Tie the bags securely to prevent any leaks or spills.

  3. Odour Absorbers: Place odour-absorbing materials at the bottom of the trash can, such as baking soda, kitty litter, or activated charcoal. These substances can help neutralize odours effectively.

  4. Cleaning and Disinfecting: Regularly clean and disinfect trash cans to eliminate lingering odours. Use a mixture of water and vinegar or mild detergent to scrub the inside and outside of the trash cans.


Eliminating office odours is crucial for maintaining a pleasant and productive work environment. By following the tips and strategies outlined in this blog post, you can tackle common sources of odours such as bathrooms, break rooms, sinks, fridges, carpets, upholstery, and trash cans. Regular cleaning, proper ventilation, and the use of natural odour neutralizers are crucial to keeping your office smelling fresh and inviting. Implement these practices consistently, and you’ll create a more comfortable workspace that promotes productivity and well-being for everyone.

Explore expert insights, stay up to date with industry events, and gain a deeper understanding of the cutting-edge developments that are revolutionizing the indoor air quality landscape within Blade Air's comprehensive Insights Hub.

You can also subscribe to our monthly newsletter below for exclusive early access to Blade's Insights content, uncovering tomorrow's air quality advancements before they hit our Hub.

Insights Hub

Lorem ipsum dolor sit amet, consec tetur adipiscing elit. Sit quis auctor 

Lorem ipsum dolor sit amet cotetur 

Lorem ipsum dolor sit amet, consec tetur adipiscing elit. Sit quis auctor 

Lorem ipsum dolor sit amet cotetur 

Lorem ipsum dolor sit amet, consec tetur adipiscing elit. Sit quis auctor 

Lorem ipsum dolor sit amet cotetur 

bottom of page