The plastic in our Nebulisers is subject to a certain amount of wear caused by mechanical and thermal stresses. The area around the nebuliser nozzle is particularly susceptible. This can even alter the composition of the aerosol droplets, which directly impairs the effectiveness of the treatment. PARI GmbH therefore recommends that you replace certain components of your nebuliser, or the entire nebuliser, the connection tubing and the filter every year if the device is used regularly. To make this easier, we offer convenient PARI Year Packs. These contain all of the individual parts that must be replaced once a year. It is also advisable to replace the nebuliser regularly for hygienical reasons.