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Report Finds KN95 Masks Not as Effective as N95 Masks
Researchers at ECRI found that up to 70 percent KN95 masks imported from China don't meet U.S. standards for effectiveness as with N95 masks. The group issued a hazard warning last month.
Researchers at ECRI found that up to 70 percent KN95 masks imported from China don't meet U.S. standards for effectiveness as with N95 masks. The group issued a hazard warning last month.
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