The Often Invisible Risk

We spend around 90% of our time indoors, in offices, schools, hospitals, and homes, yet we rarely stop to think about the quality of the air we breathe. Whilst we can see when a surface is dusty or a light flickers, air quality issues are invisible. They build quietly over time, affecting our comfort, performance, and our health.

Poor indoor air quality can cause fatigue, headaches, difficulty concentrating, and sick building syndrome. In the longer term, exposure to pollutants like VOCs, Radon, and fine particulates can increase risks of respiratory or cardiovascular illness, in fact Radon is the UK’s second-leading cause of lung cancer.

At Evotech, we believe a healthy building is the foundation for healthy people. That’s why we’ve developed our Building Health solutions, combining cutting-edge monitoring technology, data insight, and engineering expertise to help clients create safe, efficient, and comfortable indoor environments.

What Do We Mean by Building Health?

Building Health goes beyond basic ventilation or compliance checks. It’s about actively understanding and managing the indoor environment to optimise both human wellbeing and building performance. We monitor a range of key environmental parameters, including:

• CO₂ levels, an indicator of ventilation and occupant comfort
• Temperature and humidity which are essential for comfort, productivity, and pathogen control
• Volatile Organic Compounds (VOCs), emitted by everyday materials and cleaning products
• Particulate Matter (PM), tiny particles that can affect respiratory health
• Radon, a naturally occurring, radioactive gas that can accumulate indoors

Each of these factors contributes to overall building health. When levels rise above recommended thresholds, occupants may experience discomfort or adverse health effects, and building systems often work less efficiently.

Our approach combines smart sensors, secure cloud platforms, and expert engineering

Assessment & Strategy

Every building is different. We begin by understanding occupancy patterns, ventilation design, and usage. This allows us to tailor a monitoring and management plan.

Sensor Deployment

Wireless indoor air quality sensors are installed throughout the space, continuously measuring CO₂, temperature, humidity, VOCs, particulate matter, and more.

Real-Time Monitoring & Alerts

Data is transmitted securely to our cloud-based dashboard, where clients and our engineers can visualise performance in real time. If parameters exceed thresholds, alerts are triggered automatically.

Diagnostics & Insight

We interpret the data to identify trends, such as poorly ventilated zones or HVAC imbalances, and recommend targeted actions.

Remediation & Support

Our technical teams can then implement remedial works, adjust ventilation settings, or maintain systems to restore optimal conditions.

Ongoing Health Checks

Continuous monitoring ensures that once improvements are made, conditions stay optimal over time, not just on inspection day.

Case Study: No.1 Whitehall, Leeds

A great example of building health in action is our project at No.1 Whitehall, Leeds, where Evotech deployed 22 indoor air quality and radon sensors across a multi-floor office building.

Within weeks, we identified ventilation imbalances that were leading to humidity fluctuations and elevated CO₂ levels in certain areas. Adjustments to the HVAC system not only improved air quality but also reduced energy waste, as the system no longer overcompensated for poor airflow. Read the full case study here. 

The result?

• Healthier, more comfortable spaces for occupants
• Lower operational costs
• A proactive, data-driven approach to maintenance

This project demonstrates how small, invisible issues can be addressed early with the right insights, protecting both people and building assets.

The Benefits of Prioritising Building Health

• Improved wellbeing: Fewer headaches, respiratory symptoms, and fatigue.
• Enhanced productivity: Studies show cognitive function drops when CO₂ levels are high.
• Energy efficiency: Smarter ventilation means less waste and lower carbon emissions.
• Reduced absenteeism: Healthier air supports employee attendance and satisfaction.
• Regulatory readiness: Ongoing monitoring supports compliance with HSE and CIBSE guidance.
• In short, healthy buildings perform better.

Getting Started

Evotech offers an Indoor Air Quality Health Check to help you understand how your building performs. Starting from just £195 + VAT, this assessment gives you a clear baseline and practical steps for improvement.

Whether you manage an office, school, healthcare facility or commercial property, our team can help you:

• Diagnose unseen air quality issues
• Implement continuous monitoring
• Optimise ventilation and HVAC performance
• Build a proactive maintenance plan based on live data

We don’t just monitor your environment, we make it better.

Better Building Performance Equals Better Building Health

As we continue to evolve how we work and live indoors, the spaces we occupy must do more than shelter us - they must better support us.

At Evotech, our mission is to make buildings truly healthy, sustainable, and people focused. Because, when buildings perform better, everyone benefits.

Find out more:

Visit www.evotechairquality.co.uk/solutions or contact our team on 0333 207 4245 to book your Building Health Assessment today.