Tell me the distance, work type, building age, wind direction, timing, and who lives at home. I'll estimate which dust and chemical exposures may be relevant and give you a practical checklist.
Think about where the construction site is relative to your home. Does the wind carry dust toward you or away?
This changes whether we focus on air quality or settled dust cleanup.
The score combines four factors: your distance from the construction site, the type of activity (demolition is riskier than framing), the age of the building being worked on (older buildings may contain lead and asbestos), and who lives in your home (babies and pregnant women are more vulnerable). These factors are multiplied together and scaled to a 1-10 range. A higher score means more potential exposure.
Most construction projects are temporary, and the risk depends heavily on distance and activity type. If you're more than a quarter mile away, your exposure is minimal. Within a few hundred feet, it's worth taking basic precautions like keeping windows closed during work hours and running an air purifier. The goal isn't to panic. It's to know what simple steps actually make a difference.
Demolition carries the highest baseline risk because it disturbs decades of accumulated materials. When old buildings come down, they release silica dust, asbestos fibers, lead paint dust, and other trapped contaminants all at once. Road work and painting are also high-risk because they involve volatile chemicals and diesel exhaust at ground level where you breathe them directly.
If you're within 300 feet of active construction, yes. A HEPA air purifier is one of the most effective things you can do. Construction dust particles are often too small to see but small enough to reach deep into your lungs. A quality HEPA filter captures 99.97% of these particles. I recommend the Levoit Core 300S for most rooms. It's affordable, quiet, and independently tested.