Global Tech presenter explaining salt rock filter media to a visitor

Photo: Mariusz Młynarczyk / CloudAir.tech

A Global Tech presenter points to salt rock on the counter while talking with a visitor. Above them hangs a unit with transparent cassettes labelled "Absorbent AB-II-CAX Zeolity", "Adsorbent AD-II-BCX" and "Halit", next to the stand's gold medal posters and ground heat exchanger photos.