Capsules

• How do I know if a Refillable Capsule is empty?
• Where/how should I store my Refillable Capsules?
• There's something wrong with my Refillable Capsules — what do I do?
• How many times are Refillable Capsules reused by Aerflo before they're retired?
• What material is the Capsule Holder made out of?