Tim Olk photo Tim Olk photo Tim Olk photo Tim Olk photo Tim Olk photo Tim Olk photo Tim Olk photo Ionic contamination Tester,Ionic contamination analyzer,PCB cleanliness tester,Static ionic contamination tester,PCB contamination tester Welltronics Technology Limited , https://www.welltronics.cnPhotos from the 3-11 Alarm fire in Chicago on April 23, 2022, captured by Tim Olk. These images provide a powerful visual record of the event, showing the intensity and scale of the incident. Each photo offers a unique perspective, highlighting the efforts of first responders and the impact on the community.