Katrina's Mouthpiece Evaluation (MP4)
Price: $4.99
Length: 4 minutes
Size: 181 MB
Format: mp4
Resolution: 1280x720
Added: 3/20/14 2:17 AM
Katrina reviews our latest selection of mouthpieces for comfort and effectiveness. She begins with the now-standard SDI Diagnostics spirometer mouthpiece with an integral lip ring, then tries our prior standard mouthpiece, which lShow more