![]() While filter efficiency shows how well the filter media performs, users must ensure a proper fit is achieved.”Īs these respirators are designed for people with facial features common in China and Asia, they may not fit as well as respirators intended for sale and use in the U.S. NIOSH states “limited assessment of ear loop designs indicate difficulty achieving a proper fit. Information about which respirator models contain earloops can be found in this product table(PDF,546.30 KB). Among the models being imported by FEMA are several models that feature earloops. In countries outside the US, 3M does manufacture some certified respirators which feature earloops. ![]() ![]() In some countries outside the U.S., however, it is more common for respirators to feature earloops. In the U.S., earloops are often seen on masks but not on NIOSH-approved respirators, which typically have head bands.
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