Are your masks effective? An expert weighs in on cloth vs N95 options

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MILWAUKEE (CBS 58) -- Well you know those paper and cloth masks we've been wearing the past two years? Turns out they're pretty much useless against the Omicron Variant. 

It's all about the N95 masks now. Dr. Nikki Vars McCullough is a scientist and expert on N95s and masks of all kinds. She's also the vice president of the personal safety division at 3M. She joined CBS 58 on Thursday, Feb. 3 to talk about the latest on face coverings.


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