1. Home
  2. Health
  3. Lung Diseases

Types of Inhalers

Metered-Dose Inhalers and Dry Powder Inhalers

From About.com

Updated: February 27, 2006

About.com Health's Disease and Condition content is reviewed by Sanja Jelic, MD

Inhalers are hand-held devices used for delivering respiratory medication. Although many different styles of inhalers are available, there are two basic types of inhalers:
  • Metered-dose inhalers
  • Dry powder inhalers
  • Metered-Dose Inhalers

    Metered-dose inhalers use chemical propellants to expel the medication from the inhaler device. To administer the medication, the patient may either use direct inhalation or squeeze the inhaler's canister.

    Dry Powder Inhalers

    Dry powder inhalers release the medication via rapid inhalation instead of using chemical propellants. The strength of the inhalation required is stronger than that needed to release the medication of a metered-dose inhaler.

    Nebulizers - An Inhaler Alternative

    Because of the coordination and strength needed to use metered-dose inhalers and dry powder inhalers, some people may choose to use a nebulizer instead. Nebulizers convert medication into a fine mist and deliver the medication through a face mask that covers the mouth and nose.

    If you are having difficulty using your inhaler, a nebulizer may be a good alternative. Talk to your doctor about the different types of inhalers available. Discuss any difficulties you may be having and find out if a nebulizer may be a better alternative for you.

    Related: Are Metered Dose Inhalers Better Than Nebulizers?

    Source: Mayo Clinic
    Updated: 02/27/06

    Explore Lung Diseases

    More from About.com

    About.com is accredited by the Health On the Net Foundation, which promotes reliable and trusted online health information.
    1. Home
    2. Health
    3. Lung Diseases
    4. Asthma
    5. Types of Inhalers - Metered-Dose Inhalers - Dry Powder Inhalers - Nebulizers

    ©2008 About.com, a part of The New York Times Company.

    All rights reserved.