Four types of inhalation devices are employed — metered dose inhalers, Respimats, dry-powder inhalers, and

Four types of inhalation devices are employed — metered dose inhalers, Respimats, dry-powder inhalers, and

Four types of inhalation devices are employed — metered dose inhalers, Respimats, dry-powder inhalers, and nebulizers.  Discuss how each of these devices are used to treat asthma and asthma exacerbations.