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Lab worker wearing a powered air-purifying respirator
Lab worker wearing a powered air-purifying respirator
Types of respirators by physical form. Click to enlarge.
Types of respirators by physical form. Click to enlarge.
Workplace protection factor (PF) of filtering facepiece, measured in real time with two optical dust meters. In-facepiece dust concentration is change
Workplace protection factor (PF) of filtering facepiece, measured in real time with two optical dust meters. In-facepiece dust concentration is changed dozens of times in a matter of minutes due to changes of the size of the gaps between the mask and face.
A simple Dräger escape respirator. This model has no hood, and instead comes with noseclips to ensure the wearer breathes only through the filter.
A simple Dräger escape respirator. This model has no hood, and instead comes with noseclips to ensure the wearer breathes only through the filter.
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Face mask (filtering facepiece respirator) FFP3 with exhalation valve
Face mask (filtering facepiece respirator) FFP3 with exhalation valve
Filtering half mask, reusable elastomeric respirator with pink replaceable pancake filters and grey exhalation valve
Filtering half mask, reusable elastomeric respirator with pink replaceable pancake filters and grey exhalation valve
Full-face elastomeric respirators seal better.
Full-face elastomeric respirators seal better.
Cross-section of NIOSH-approved P95 filters used in metalworking operations. Even "clean" industrial processes often generate large amounts of harmful
Cross-section of NIOSH-approved P95 filters used in metalworking operations. Even "clean" industrial processes often generate large amounts of harmful particulate matter and require breathing protection.