Space Chamber Plus is recommended for the delivery of asthma and COPD medication and is compatible with all inhalers. Designed to deliver more medication to the lungs than with a MDI alone, enabling patients with asthma and COPD to take control. Key Features: Cross valve technology provides improved drug delivery and ease of use through low resistance, one-way flow. Transparent chamber allows clear visualization of respiratory valve movement and direct confirmation of correct product operation and usage by patients Standard 22MM mouthpiece can be attached to most face masks on the market Universal inhaler base has an elastic opening that fits all MDI brands and does not dislodge during removal of inhaler. For use as part of an asthma action plan.