High-unit ozone plate: this machine has a maximum rate of 40,000 mg/h, perfect for use in areas up to 8000 square feet. It features an ceramic ozone plate, which is more durable and has a longer ...

Welsh ministers had announced they would spend £3.31m on new ozone machines developed by Swansea University. But two days later BBC Wales was told no decision was taken to buy them, with ...