At the start of 2017, ISO 16890 was launched to become the new global standard for HVAC air filtration. ISO 16890 will replace the EN 779 classification, which means saying goodbye to the familiar F7 - and all the other G, M and F classes. It's going to completely change how you specify and buy HVAC filters. But what is ISO 16890? Why has ISO 16890 been launched? And what does ISO 16890 mean for you? You can find out below.