Philips Respironics has become aware of a potential issue when using in-line nebulizers in certain configurations with Trilogy Evo and Trilogy Ev300 devices. The use of in-line nebulizers placed in certain locations can result in aerosol deposits accumulating over time on the device's internal flow sensor. Impacted flow sensors may result in inaccurate flow measurements in certain circumstances. Recall start date: September 18, 2024