OptiChamber Advantage Valved Holding Chamber helps your patients get the best part of their asthma inhaler medication in the most efficient way.  With optimal performance and optimal value, OptiChamber Advantage gives you and your patient the advantage in metered dose inhaler therapy.  When an inhaler is used alone, medication often ends up in the lungs.  Research confirms that OptiChamber targets more drug to the lungs than an MDI alone.  Now available from DRE in a package with mask! Mask only can be purchased as well - DRE part number 8021SV.