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Spacers (sometimes also called holding chambers) are devices that hold the
medication for a few seconds after it has been released from the MDI. They serve
two main purposes:
- Overcome the need for synchronization between firing the aerosol and
inhalation. This allows full benefit of the pMDI
- Slow down the aerosol spray before it reaches the mouth, thus allowing the
propellants to evaporate and larger particles to settle in the spacer. This
leads to less deposition in the oropharynx and greater deposition in the lungs.
Decreased oropharyngeal deposition is particularly important for inhaled steroid
since this reduces the incidence of oral thrush and also the amount of drug that
is swallowed. This may reduce any systemic side effect that may occur.
Different Types of Spacer Devices
ZerostatVT TM spacer
ZerostatVT TM
spacer is a unique static free transparent spacer with a valve
mechanism which increases the drug fraction reaching the lungs. It is both a
spacer (extends the space between the inhaler and the mouth) as well as a
holding chamber (acts as a reservoir where the actuated aerosol cloud can be
held prior to inhalation). It has all the features which a spacer should ideally
have i.e. static free, transparent, flow gate valve, shape of an aerosol plume
and volume 250-300ml.
Transparent ZerostatVT TM spacer is designed to provide visual
confirmation that the dose is delivered. ZerostatVT
TMspacer ensures that
patient receives a high and consistent quantity of medication dose after dose.
The time available for inhalation is prolonged by using polyamide, which is a
static free material. Unidirectional flow from the holding chamber is achieved
by using a one-way valve.

Added Features of ZerostatVT TM :
- Reduces ‘cold freon` effect
(A cold feeling in the throat as the
propellant spray hits the back of the throat)
- Small, portable, easy to carry and child friendly
- Prevents the risk of dilution of dose
- Robust and durable
- Functional even at low insipriatory or expiratory flow rates
Zerostat-V TM Spacer

Zerostat V TM Spacer is a static-free spacer with a valve
mechanism
Zerostat Spacer
Zerostat TM
Spacer is a static-free spacer without a valve mechanism |