APSD of Nebulisers

For devices such as nebulisers, the evaporation of droplets exacerbated by the thermal mass of the impactor can be a problem, especially for drugs in solution. 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. The recommended flow rate of 15 L/min employed in the APSD testing of nebulisers is lower than that of other OINDPs in order to better represent the tidal breathing conditions employed in their use.

Please select an option:

Related Applications

We also offer a range of equipment for additional nebuliser 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


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

Find out More


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

Find out More


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

Find out More

Related News & Resources