People with asthma often use inhalers (also called puffers) to take their medications.
A spacer (also sometimes called a holding chamber) is a device that makes using an
inhaler easier and more effective. It attaches to the inhaler on one end and to a
mouthpiece or mask on the other end. When the medication from the inhaler is released
into the spacer, it's held inside until it's slowly inhaled through the mouthpiece
or mask. It doesn't require special coordination that the use of an inhaler alone
requires. A spacer also helps deliver the medication to the airways - instead of the
mouth and throat - where it can work better with fewer side effects.