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ZenGUARD(TM) Enhanced Air Filters to Be Added as Class 1 Medical Device Under Zentek's Medical Device Establishment Licence [Yahoo! Finance]

Zentek Ltd. - common stock  (ZTEK) 
PDF Initial test work and validation began on ZenGUARD™ Enhanced Air Filters in early 2021, culminating in the award of an Innovative Solutions Canada ("ISC") Testing Strea [Read more]