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Do valves on respirators impact their effectiveness? The purpose of a respirator’s exhalation valve is to reduce the breathing resistance during exhale; it does not impact a respirator’s ability to provide respiratory protection. The valve is designed to open during exhalation to allow exhaled air to exit the respirator and then close tightly during inhalation, so inhaled air is not permitted to enter the respirator through the valve.
While a valve does not change a respirator’s ability to help reduce a wearer’s exposure to bioaerosols, a person who is exhibiting symptoms of illness should not wear a valved respirator, because exhaled particles may leave the respirator via the valve and enter the surrounding environment, potentially exposing other people.
Check out the CDC FAQ on this topic here.
Take a look at the LinkedIn post that started it all here.
Check out the podcast episode for more detailed information. Join the discussion on LinkedIn. Just be sure to @ mention Blaine J. Hoffmann or The SafetyPro Podcast LinkedIn page. You can also find the podcast on Facebook, Instagram, and Twitter.
178: Rethinking SAFETY Culture w/Rob Bartlett
177: Eye Wash or Eye Rinse? w/Kyle Domin
176: Rethinking SAFETY Communications Book Launch
175: Professional Development w/Alex Paradies
174: Better Audits & Inspections w/Kyle Domin
173: NFPA 70E Updates w/Drew Hinton
172: How Complacency Works w/Alex Paradies
171: Announcement - The Book "Rethinking SAFETY Culture" Now Available
170: Using a Cognitive Interview Technique for Safety Incidents
169: Firefighter Building Marking System w/Drew Hinton
168: Preserve Hearing & Communications w/Nick Morrill
167: Safety + Media = Narrative?
166: Biases in Incident Deep Dives w/Alexander Paradies
165: The Evolving Injury Prevention Field w/Lori Frederic
164: What is Safety Training? w/Drew Hinton
163: Normalization of Deviation w/Alex Paradies
162: Should We Bend & Twist? w/Lori Frederic
161: Occupational Safety & Health Degrees at CSU w/Paul Radke
160: Visualizing a Safer Workplace w/Doug Pontsler
159: Mask Efficacy & COVID-19 w/Stephen Petty, CIH
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