Do It Yourself: Box Fan Indoor Air Filters

June 8, 2026

An easy and inexpensive way to improve air quality in your home is to build an indoor air filter using a common box fan. Come to this demonstration by Climate Smart Glacier staff and learn how easy it is to improve the quality of air in your home during a smoke or other air quality event.

Then check out the new Indoor Air Monitor at the Library. Learn about our partnership with Climate Smart Glacier and the MT Department of Public Health and Human Services to provide cleaner air to our community .

*Monday, June 8, 5:30 p.m., in the Community Room. Box fan air filter duct tape