3M Exhalation Valve Filter 604
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- NIOSH approved accessory for 3Mâ„¢ Reusable Respirator Half Facepiece 6000 Series with 3Mâ„¢ Particulate Filters 7093, 5N11/501/603 or 2091
- Designed to help filter the wearer’s exhaled breath
- Provides source control when worn with 3M 6000 Series Half Facepiece Reusable Respirators
- EVF filter media meets 99% Bacterial Filtration Efficiency (BFE) based on testing conducted per ASTM F2101. Not FDA cleared as a medical device.
- EVF is fluid resistant based on testing conducted per ASTM F1862. Not FDA cleared as a medical device
- Can be safely wiped with water, cleaners, and disinfectants between uses
- Designed to maintain the breathing comfort provided by an exhalation valve
- Allows users to conduct a positive pressure seal check while installed on facepiece