When should I replace the air filter in my Microlife NEB410 Children's Nebulizer?

[DelMaximus]

To keep your Microlife NEB410 Children's Nebulizer running smoothly, pay close attention to its air filter. According to the user manual, you should swap out the air filter (labeled AM) after roughly 200 hours of use, or about once a year if you're using it as directed. It's a good idea to peek at the filter every 10-12 treatments. If it looks grey, brown, or wet, replace it. Remember, don't try to clean and reuse the filter, and always use an original Microlife replacement filter. Also, never service or replace the filter while the nebulizer is being used by a patient.