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N95 respirators are considered similar to other respirators regulated under non-U.S. jurisdictions, but slightly different criteria are used to certify their performance, such as the filter efficiency, test agent and flow rate, and permissible pressure drop.For example, FFP2 respirators of the European Union are required to meet at least 94% filtration, and KN95 respirators of China are ...
FFP standards refer to the filtering half mask classification by EN 149, a European standard of testing and marking requirements for filtering half masks.[1] FFP standard masks (where FFP stands for filtering facepiece)[2] cover the nose, mouth and chin and may have inhalation and/or exhalation valves.[1] EN 149 defines three classes of such ...
White, disposable Standard N95 filtering facepiece respirator A half-face elastomeric air-purifying respirator.This kind of respirator is reusable, with the filters being replaced periodically. Lab worker wearing a powered air-purifying respirator A respirator is a device designed to protect the wearer from inhaling hazardous atmospheres including fumes, vapours, gases and particulate matter ...
A surgical mask, also known by other names such as a medical face mask or procedure mask, is a personal protective equipment used by healthcare professionals that serves as a mechanical barrier that interferes with direct airflow in and out of respiratory orifices (i.e. nose and mouth ).
A filtering facepiece N95 respirator A firefighter wearing an N95 filtering facepiece respirator. Note that, in this picture, the respirator is being worn incorrectly because the top strap should be above the ears and behind the head. The NIOSH air filtration rating is the U.S. National Institute for Occupational Safety and Health (NIOSH)'s classification of filtering respirators.
Bag valve mask. A bag valve mask ( BVM ), sometimes known by the proprietary name Ambu bag or generically as a manual resuscitator or "self-inflating bag", is a hand-held device commonly used to provide positive pressure ventilation to patients who are not breathing or not breathing adequately. The device is a required part of resuscitation ...
Dust mask. A dust mask is a flexible paper pad held over the nose and mouth by elastic or rubber straps for personal comfort against non-toxic nuisance dusts. They are not intended to provide protection from toxic airborne hazards. [1] [2] The European FFP1 mask, the lowest-grade mechanical filter respirator available in the jurisdiction, is ...
