#Portable spirometer lets you track lung activity + strength, for people recovering from breathing issues
“#Portable spirometer lets you track lung activity + strength, for people recovering from breathing issues” Designed to help measure lung activity and strength while on the go, the Airpen is a small handheld pocketable spirometer that tracks how hard you can inhale/exhale. Working pretty much the way a breathalyzer does, the Airpen uses a small…