| Manufacturer | Home Science Tools |
A reusable kit that contains 5 mouthpieces and "lung" bags that are marked in 1 liter and 1/10 liter graduations.
SIUE STEM Resource Center
http://www.siuestemcenter.org/
Southern Illinois University Edwardsvillehttp://www.siuestemcenter.org/
Science East, Room 1276
Edwardsville, IL, 62026
USA
618-650-3065