Snapshot: Invisible Fence of Central Indiana donates pet oxygen masks to WFD Current Publishing 5 years ago Invisible Fence of Central Indiana recently donated pet oxygen masks to the Westfield Fire Dept. WFD has utilized pet oxygen masks for a few years but plans to put the donated masks to good use. Firefighter Ryan Herron practices applying a pet oxygen mask to Stella the labradoodle. (Submitted photos) Invisible Fence of Central Indiana recently donated pet oxygen masks to the Westfield Fire Dept. WFD has utilized pet oxygen masks for a few years but plans to put the donated masks to good use. Firefighter Ryan Herron practices applying a pet oxygen mask to Stella the labradoodle. (Submitted photos) Firefighter Ryan Herron, right, learns how to give CPR to a dog from Stacy Goins. From left, Brandon Taylor, Chad Everitt, Mike Blech, Josh Hedden, Jason Gibbons, Stacy Goins, Brian Timme, Ryan Herron and Mark Sutphin. More Headlines