EPA Region 1 is offering community-based organizations the opportunity to borrow PurpleAir sensors as part of an air sensor loan program. These units are user-friendly, Wi-Fi-enabled, stationary sensors that collect particulate matter (PM) data, specifically PM2.5, and can transmit the data wirelessly to an online map, where you can observe the amount of PM in the air in real-time. Take a look at this map to see all of the registered PurpleAir units in action!
The loan program can be a useful community education tool since it provides a uniform framework for investigating outdoor air quality, which can empower community members to reduce emissions of and exposure to harmful PM pollution where they live, work, and play.
For more information about the loan program and how to apply, please refer to the Program Plan. Additionally, EPA Region 1 hosted an information session in January 2025 about participating in the loan program. The information session covered information included in the Program Plan. If you would like to view the recorded information session, please email Michelle Coombs.
Applications are required in order to be considered for a loan. EPA offers two (2) rounds of open application periods. The first deadline for submitting applications was October 1, 2025. The next deadline for submitting applications is April 1, 2026.
To request an application, email coombs.michelle@epa.gov
