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I'm pretty sure a vented mask is at least as effective as a cloth or surgical mask in that regard, both of which mostly contain the aerosol spray rather than ac
by halpert 5y ago
I'm pretty sure a vented mask is at least as effective as a cloth or surgical mask in that regard, both of which mostly contain the aerosol spray rather than actually filter out small particles. I doubt the stores you go to require true respirators?
Apparently the CDC agrees: https://www.cdc.gov/coronavirus/2019-ncov/hcp/respirator-use-faq.html https://www.cdc.gov/coronavirus/2019-ncov/hcp/respirator-use...
> Yes, an N95 filtering facepiece respirator will protect you and provide source control to protect others. A NIOSH-approved N95 filtering facepiece respirator with an exhalation valve offers the same protection to the wearer as one that does not have a valve. As source control, findings from NIOSH research suggest that, even without covering the valve, N95 respirators with exhalation valves provide the same or better source control than surgical masks, procedure masks, cloth masks, or fabric coverings.
- Qub3d 5y agoI'm sure its fine for most situations, but you should be aware: below that entry it states that elastomeric respirators (like you are using with P100) are not included in that category: > Until more is understood on exhalation valves, elastomeric respirators with unfiltered exhalation valves should not be used as source control in surgical and other healthcare settings due to concerns that air coming out of the exhalation valve may contaminate the sterile field.
- halpert 5y agoThat's for healthcare and surgery, not for going to the store...
- Qub3d 5y agoThus why "I'm sure its fine for most situations". I just want to make sure that when we're throwing around CDC stuff, we're doing it in context. Goodness knows enough people are taking expert snippets and doing terrible things with them, I'd hate to see HN become a source of that.