Why Are You Getting Tired at the Office? It Might Not Be the Workload You Think It Is—It Could Be the Air

Do you often have a headache at the office or feel your energy levels drop in the afternoon? The reason might not be your workload, as you might think. The air quality, CO2 levels, and thermal comfort of your workspace directly affect your capacity to focus, decision-making speed, and general health. Research shows that poor indoor air quality reduces employee performance and increases feelings of fatigue. So, is your office truly supporting you, or is it slowing you down without you noticing?

In this article, based on the WELL module discussed in the Studio Alliance PlaceX training in recent weeks, we examine how air quality, thermal comfort, and material choices directly impact office performance.

1. The Invisible Foundation of Office Performance: Air Quality

One of the most critical factors reducing productivity in the office often goes unnoticed: the air.

Poor indoor air quality leads to:

• Loss of focus
• Headaches
• Fatigue
• Lower cognitive performance
• Increased absenteeism

CO2 Levels: The Office’s "Hidden Performance Indicator"

It is no coincidence that everyone feels sleepy after a while in a meeting room.

The reason is often high CO2 levels.

• 600 ppm: High performance
• 900 ppm: Acceptable
• 1000+ ppm: Attention begins to decline

For this reason, CO2 sensors in today's offices are not just technical equipment; they are also becoming a behavior management tool.

2. Density: More Than Just Square Meters

A common mistake in office design is evaluating density solely based on area.

The reality is this:
Aynı hava ne kadar çok kişi tarafından paylaşılırsa, performans o kadar düşer.

The more people who share the same air, the more performance drops. Therefore, the density decision directly affects:

• Air quality
• Meeting efficiency
• Employee energy

Today's successful offices are establishing density strategies that aim for maximum performance instead of fitting the maximum number of people.

3. Thermal Comfort: The Same Temperature for Everyone is Not Possible

One of the most debated topics in offices is:
"It’s too cold / too hot in here."

The reason is simple:
There is no single ideal temperature.

Thermal comfort depends on many factors such as:

• Metabolism
• Clothing
• Age
• Gender
• Individual sensitivity

The Solution: Not One Temperature, but the Right to Choose

The correct approach in new-generation offices is:

• Thermal zoning (different temperature areas)
• Individual control (fans, layered clothing, etc.)
• Shading systems

The goal is not to gather everyone at the same point, but to ensure everyone can choose the environment that suits them.

4. Materials: More Than Just Aesthetics

Materials used in an office are not just visual decisions.
In fact, they directly affect:

• Indoor air quality
• Employee health
• Cleaning processes
• Sustainability

In particular, VOCs (Volatile Organic Compounds) are one of the most critical risks in new offices.

A material might look aesthetic but could be detrimental to your health.

Critical Questions for Correct Material Selection:

• Does it have a Low VOC certificate?
• Is an EPD (Environmental Product Declaration) available?
• Is the manufacturer transparent?

The WELL approach says:
"Sustainability without documentation is not sustainability."

5. The Most Critical Phase of Design: Construction and Operation

Even the best design can fail with incorrect implementation.

Risk points:

• Dust entering the HVAC system
• Use of incorrect materials
• Inability to provide moisture control

Therefore, the WELL approach covers not only design but also implementation and operation processes.

Similarly, cleaning processes are critical:

• Aggressive chemicals
• The use of intense sprays
• Incorrect product selection
  →directly affect indoor air quality.

6. Why WELL is More Critical in the Hybrid Working Era?

Research shows that employees now use the office for a different purpose:

• to focus better
• to work with higher quality
• to feel better

Companies, however, still mostly design offices for collaboration.
This gap explains why new-generation offices can fail.
The office is now competing with the home. And the winner of this competition will be the offices that offer:

• Cleaner air
• Better comfort
• A healthier environment

7. The Foundation of the WELL Approach

WELL is much more than a certification system:

• Better Air = Better focus
• Better Comfort = Higher satisfaction
• Healthier Materials = Lower risk
• Better Measurement = More accurate decisions

The essence of this approach is:

Offices are not just places where work is done; they are systems that shape human performance.

Conclusion: Healthy Office = High Performance

The most critical transformation for today's offices is this:

Human-centric design is no longer a "trend," but a necessity.

Elements that remain in the "background, such as air, temperature, and materials, directly determine:

• Employee experience
• Company performance
• long-term sustainability
  doğrudan belirliyor.

The WELL approach takes this process out of the realm of intuition and makes it measurable, manageable, and strategic.

You can find our previous PlaceX trainings below

7 Office Design Strategies to Increase Individual Focus

What Is Togetherness? Strengthening Collaboration in Hybrid Work