Zerostat VT Spacer is a non-static small volume chamber which holds the medicine so that you have enough to inhale it comfortably. It allows the medicine to reach the lungs with minimal deposition in the mouth or throat. The transparent inhaler spacer is easy to use and allows you to obtain full benefits of the medicine. Direction for useRemove the mouth piece cap from the inhalerShake the inhaler well and insert it at the back end of the Zerostat VT SpacerPress the canister and release the dose into the inhaler spacerRemove the cap from Zerostat VT SpacerRelease your breath and close your lips around the mouth piece to create a good sealBreath in deeply and slowly through your mouthRemove the inhaler spacer from your mouth and hold the breath for 30 seconds or as long as comfortableRepeat the process for second dose Use under medical supervision.