Introduction to Indoor Air Pollution – Air Filters in Action Lab – Student

Summary

Students build a shoebox filter test box, model airborne dust with cocoa powder, and compare particle buildup with and without a filter to draw conclusions about how air filtration works. The handout walks through hypothesis formation, two lab trials, a data table, and analysis and application questions connecting results to real-world HVAC systems and indoor air quality. Designed to pair with the teacher guide as part of a middle school or high school air quality unit.