Inhaler spacers

The holding chamber and valves

The chamber receives aerosol from the dose-delivering inhaler; it does not necessarily contain an electrical generator. Some designs have inspiratory or expiratory valves with different roles. Reservoir volume, visibility of moving parts and body geometry describe the device. A spacer is therefore more than an ordinary connecting tube. The arrangement of components contributes to its stated function, and a general external shape cannot establish that two chambers have the same internal construction or valve system.

Mouthpiece and mask interfaces

A mouthpiece is a different interface from a mask. Masks vary in size, contour and connection, while an age-related description does not establish every compatibility detail. The soft mask rim and chamber body may use different materials. An inhalation mask is not respiratory protective equipment: the word mask here refers to an administration accessory with its own system and purpose. Describing the interface separately prevents confusion with protective masks that belong to another product family.

Materials and system components

Some chambers have antistatic properties through their material or surface treatment. That feature requires documentation and cannot be inferred from transparency. Connectors, masks and valves need to belong to the intended system. Dismantling, replacement and care possibilities are specific to the construction rather than universal permissions. A mask shown in an illustration also does not mean it is included in every presentation of the chamber. The supplied assembly and the broader range of compatible accessories are different descriptions.

Frequently asked questions