Part of the Oxygen Enhanced Exercise Protocol included with each O2E2 System. Purchased separately.
To order by phone:
Toll Free (USA): 1-866 MY INHALE (1-866 694-6425)
International: 001 704.597.6775
To order by fax: 704-597.3927
Satisfaction guaranteed. No risk guarantee. If not satisfied return unopened within 30 days for a full refund less S & H.