APSD of Aqueous Droplet Inhalers (ADIs)

For ADIs as for nebulisers, the evaporation of droplets exacerbated by the thermal mass of the impactor can be a problem. Loss of solvent reduces droplet size, producing artificially low APSD measurements, compromising the integrity of the resulting data. Cooling the impactor to approximately 5°C is the recommended method for overcoming this problem. Classified as active devices, the recommended flow rate for ADI testing is 28.3 L/min for the ACI or 30 L/min for the NGI.

Please select an option:

Related Applications

We also offer a range of equipment for additional ADI testing application support:

Semi-Automation Tools

Improve efficiency
Reduce variability
Eliminate handling errors
Increase testing capacity

How Does a Cascade Impactor Work?

Play Video

Related Services

Training

We offer a range of training courses, presentations and seminars covering a wide range of topics....

Find out More

Servicing

A comprehensive range of both in-house and on-site product servicing options are available...

Find out More

Support

Our team of experienced technicians and engineers are on hand to help and advise ...

Find out More