EPA Region 10 Tribal Air Team and Indoor Air Quality team partnered to expand the Portable Air Monitoring Device Loan Program for Region 10 Tribes. The Program aims to reach the tribal communities to increase their knowledge and awareness of the health and environmental impacts of particulate matter pollution. This presentation will provide an overview of the EPA loan program as shared by three tribal air quality program representatives from the Spokane Tribe of Indians, the Confederated Tribes of Coos, Lower Umpqua and Siuslaw Indians, and the Confederated Tribes of Warm Springs. The EPA added Purple Air II PM sensors and indoor TES 5322A VOC monitors to the inventory. A total of 6 Tribes in Washington, Idaho, and Oregon participated in borrowing sensors for up to 1 year to support their ambient and indoor air monitoring during increased smoke events. EPA Region 10 deployed sensors to six tribal nations to deploy in their communities. The tribal partners borrowed up to three sensors each and in some cases decided to purchase their own devices. Each tribal program has distinct challenges, successes, and experiences to share from participating in the program.