The VORTEX antistatic holding chamber, with its unique cyclone twist principle, helps to overcome these drawbacks of metered dose inhalers. When the patient breathes in, the aerosol starts to move in a circle. This is particularly effective for directing the fine droplets to the lungs, avoiding undesirable deposition of medication in the mouth and throat.

"Press and breathe in. This might be the short version of the instructions for use of a metered dose inhaler. But it is not always so easy for many patients, particularly children and elderly. These groups often have difficulty actuating the metered dose inhaler and breathing in at the same time. This could result in increased deposition in the mouth and throat.