By Audwin Cash, CEO of GPS Air
During a heatwave, the advice is clear: stay inside and keep cool. But what many people don’t realize is that extreme heat doesn’t just make outdoor air dangerous. It can also worsen the quality of the air inside our homes, schools, and workplaces.
The Hidden Tradeoff of Staying Cool Indoors
As outdoor temperatures rise, the ground-level ozone and fine particulate matter that build up in the atmosphere don’t always stay outside. When people seal up buildings to keep the heat out, they often end up trapping pollutants in. Without proper ventilation or real-time monitoring, those contaminants accumulate, leading to indoor air that can be just as unhealthy as what we’re trying to escape.
This is especially concerning in public buildings like schools, offices, and senior facilities. These spaces often rely on outdated HVAC systems or rigid ventilation schedules, systems that run on timers instead of real-time data. During wildfire season or high-pollution days, the air indoors can become a reservoir for harmful particles that impact respiratory and cardiovascular health, especially for vulnerable populations.
Without the ability to respond dynamically to changing indoor air quality, they miss critical opportunities to protect occupant health and conserve energy.
Bringing Indoor Air Into the Conversation
That’s why indoor air quality needs to be treated with the same urgency as outdoor pollution. We’ve learned to check the weather, monitor UV levels, and track AQI before heading outside. It’s time we apply the same awareness to the places where we spend 90% of our time.
Small Changes, Big Impact
A growing number of schools, hospitals, and businesses are now looking into smart ventilation strategies that respond dynamically to changing conditions. These include systems that use smart sensors to continuously monitor pollutants like VOCs, fine particles, and CO₂, then adjust airflow or filtration in response. The result? Cleaner air when it’s needed most and energy savings when it isn’t. While this technology is promising, even simple steps like increasing air cleaning, upgrading filters, and tracking basic air quality metrics can make a difference.
Climate change is forcing a rethink of how we design and maintain indoor spaces. It’s not just about temperature anymore. Clean, breathable air is fundamental to health, productivity, and peace of mind. As extreme weather events become more common, the gap between indoor and outdoor air quality is narrowing. In some cases, it is disappearing altogether.
The Air Inside Shouldn’t Be an Afterthought
In the long run, making indoor air quality a public health priority will require updates to building codes, clearer standards, and greater awareness. But right now, we can start by asking a simple question: if outdoor air is a concern, what steps are we taking to ensure the air inside is truly better?
As smarter air technologies become more available, the question isn’t whether we can improve indoor air quality, it’s whether we can afford not to, especially when the same systems help reduce emissions and energy bills, too.
