Asthma inhalers are confirmed life savers and is part of a system where the sufferer has to have it in the case of an imminent attack. The best known inhaler is a form of a canister that delivers metered dosage. It is being used by millions of people worldwide both http://www.vetriolovenerdisanto.it/index.php?option=com_k2&view=itemlist&task=user&id=3958652