What does inhaler mean?
An inhaler is a portable medical device used to deliver medicine in a form that can be breathed into the lungs. It is especially associated with the treatment of asthma and chronic obstructive pulmonary disease, although inhalers may also be used for other respiratory conditions. Common designs include metered-dose inhalers, which release a measured dose of medication, and dry-powder inhalers, which deliver medicine as a fine powder. A nebulizer is related but distinct: it creates a mist from liquid medication for inhalation. In modern English, “inhaler” overwhelmingly refers to the device, while an older sense meaning a person who inhales smoke, fumes, or vapor survives mainly in historical or specialized contexts. The word is useful in both medical and everyday discussion because it identifies a particular kind of treatment delivery system: medicine is not swallowed or injected but carried directly to the respiratory tract.
nounA portable device that delivers medicine in the form of a gas, vapor, mist, or powder for inhalation, especially into the lungs. In older or less common usage, it can also mean a person who inhales a substance, such as smoke or fumes.
- A portable medical device for delivering medicine to be inhaled, especially into the lungs.
- A person who inhales a substance, especially smoke, fumes, or vapor; now mainly a dated or less common sense.
"She used her inhaler as soon as the tightness in her chest began."
"After the sudden asthma attack, he reached for his inhaler."
"The pharmacist explained how to clean and store the inhaler properly."
The regular plural is used for individual devices or for multiple devices of the same or different types.
"The clinic provided spare inhalers and instructions for replacing the devices when necessary."
An inhaler turns a medical instruction into a breath: its Latin root, halare, means “to breathe.”
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does inhaler come from?
English “inhale” was borrowed in the early 16th century from Latin inhalare, “to breathe into” or “draw into the lungs,” formed from in- (“into”) and halare (“breathe”). “Inhaler” was formed with the suffix -er and originally referred to a person or device involved in inhaling; the medical device sense became established with modern inhalers used to deliver respiratory medicines. Related forms such as “inhalation” and “inhalant” preserve the same Latin root, while “halitosis” also ultimately derives from halare.
Related word forms
How inhaler is actually used
In modern medical usage, “inhaler” is the standard term for a device that delivers inhaled medicine, particularly in the treatment of asthma and COPD. “Puffer” is a familiar informal alternative, especially in North American English.
Easily confused with inhaler
An inhaler generally delivers a measured dose of medicine, whereas a nebulizer turns liquid medicine into a fine mist that is inhaled through a mask or mouthpiece.
An inhaler delivers medication to the user, while a respirator is primarily a protective device worn to filter hazardous particles or gases from the air.