Seattle startup Singletto is marketing a medical mask that includes its Oxafence technology, which is proven to kill viruses. (Singletto Photo) COVID-19, at the moment, might feel safely in the ...
Virus-fighting startup Singletto closed a $10 million Series A investment round and is now selling its pathogen-killing face masks on Amazon. The Seattle company was also selected by the U.S. Defense ...
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