Infrared to show air particles from your talk hole

<img width=“750” height=“481” src=“https://i2.wp.com/flowingdata.com/wp-content/uploads/2020/12/infrared-to-show-air-particles.png?fit=750%2C481&ssl=1" class=“attachment-medium size-medium wp-post-image” alt=“” loading=“lazy” srcset=“https://i2.wp.com/flowingdata.com/wp-content/uploads/2020/12/infrared-to-show-air-particles.png?w=1697&ssl=1 1697w, https://i2.wp.com/flowingdata.com/wp-content/uploads/2020/12/infrared-to-show-air-particles.png?resize=750%2C481&ssl=1 750w, …