Some users in the other thread (myself included) who bought one box received them partially crushed because they were shipped in a bubble mailer rather than a box:
A properly fitted N95 would offer the most protection to the user and others. A surgical mask offers adequate protection for most day to day activities and is hands down the most bang for the buck. But if you are high risk (due to age or health conditions), or want the peace of mind, getting an N95 or KN95 is a no-brainer if you can afford it.
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09-28-2020 at 04:20 PM.
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from compfreak
:
Curious...wouldn't a n95 better protect others assuming it's not the valve type? Especially if you have a good seal.
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from superkaz661
:
Agreed.
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from sexyrob
:
A properly fitted N95 would offer the most protection to the user and others. A surgical mask offers adequate protection for most day to day activities and is hands down the most bang for the buck. But if you are high risk (due to age or health conditions), or want the peace of mind, getting an N95 or KN95 is a no-brainer if you can afford it.
I havent had time to go through it, but this study might be helpful to answer that question (might be)
"Our results clearly indicate that wearing surgical masks or unvented KN95 respirators reduce the outward particle emission rates by 90% and 74% on average during speaking and coughing, respectively, compared to wearing no mask. "
"We also note that the emission reduction due to surgical masks was greater than the corresponding reduction due to KN95 respirators, although this difference was only significant for coughing (p < 0.05). That the surgical masks appear to provide slightly greater reduction than the KN95 respirators is perhaps surprising, as KN95s are commonly thought of as providing more protection than surgical masks for inhalation. Both surgical masks and KN95 respirators typically have high material filtration efficiencies (> 95%)63, although the quality of surgical masks can vary substantially64. The fit of surgical and KN95 respirators differs substantially. Here, no fit tests were performed to ensure good seals of the KN95 respirators. It may be that imperfect fitting of KN95 respirators allows for greater escape of particles from the mask-covered environment compared to the more flexible surgical masks. Regardless, all surgical masks, KN95 and N95 respirators tested here provided substantial reduction of particle emission compared to no mask."
Conclusion:
These observations directly demonstrate that wearing of surgical masks or KN95 respirators, even without fit-testing, substantially reduce the number of particles emitted from breathing, talking, and coughing. While the efficacy of cloth and paper masks is not as clear and confounded by shedding of mask fibers, the observations indicate it is likely that they provide some reductions in emitted expiratory particles, in particular the larger particles (> 0.5 μm). We have not directly measured virus emission; nonetheless, our results strongly imply that mask wearing will reduce emission of virus-laden aerosols and droplets associated with expiratory activities, unless appreciable shedding of viable viruses on mask fibers occurs. The majority of the particles emitted were in the aerosol range (< 5 μm). As inertial impaction should increase as particle size increases, it seems likely that the emission reductions observed here provide a lower bound for the reduction of particles in the droplet range (> 5 μm). Our observations are consistent with suggestions that mask wearing can help in mitigating pandemics associated with respiratory disease. Our results highlight the importance of regular changing of disposable masks and washing of homemade masks, and suggests that special care must be taken when removing and cleaning the masks.
Some users in the other thread (myself included) who bought one box received them partially crushed because they were shipped in a bubble mailer rather than a box:
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I hope this helps,TofuVic
- Surgical masks protect others from the wearer better than N95 masks.
- N95 masks protects the wearer from others better than surgical masks.
And some oversimplified examples:- If you are sick and still need to be around others, a surgical mask would be ideal so others don't get sick from you.
- If someone nearby is sick and you need to be around that person, an N95 mask would be ideal for you so you don't get sick due to that person.
I hope this provides clarification,Tofu Vic
- Surgical masks protect others from the wearer better than N95 masks.
- N95 masks protects the wearer from others better than surgical masks.
And some oversimplified examples:- If you are sick and still need to be around others, a surgical mask would be ideal so others don't get sick from you.
- If someone nearby is sick and you need to be around that person, an N95 mask would be ideal for you so you don't get sick due to that person.
I hope this provides clarification,Tofu Vic
https://slickdeals.net/f/14345831-honeywell-n95-mask-20-pieces-41-95-shipping-no-tax?v=1&page=12
Also, they didn't fit my face well. Will be donating these to someone and not biting again on a molded/cup-style face mask.
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Our community has rated this post as helpful. If you agree, why not thank BrotherAli
https://www.nature.com/articles/s...20-72798-7
From results:
"Our results clearly indicate that wearing surgical masks or unvented KN95 respirators reduce the outward particle emission rates by 90% and 74% on average during speaking and coughing, respectively, compared to wearing no mask. "
"We also note that the emission reduction due to surgical masks was greater than the corresponding reduction due to KN95 respirators, although this difference was only significant for coughing (p < 0.05). That the surgical masks appear to provide slightly greater reduction than the KN95 respirators is perhaps surprising, as KN95s are commonly thought of as providing more protection than surgical masks for inhalation. Both surgical masks and KN95 respirators typically have high material filtration efficiencies (> 95%)63, although the quality of surgical masks can vary substantially64. The fit of surgical and KN95 respirators differs substantially. Here, no fit tests were performed to ensure good seals of the KN95 respirators. It may be that imperfect fitting of KN95 respirators allows for greater escape of particles from the mask-covered environment compared to the more flexible surgical masks. Regardless, all surgical masks, KN95 and N95 respirators tested here provided substantial reduction of particle emission compared to no mask."
Conclusion:
These observations directly demonstrate that wearing of surgical masks or KN95 respirators, even without fit-testing, substantially reduce the number of particles emitted from breathing, talking, and coughing. While the efficacy of cloth and paper masks is not as clear and confounded by shedding of mask fibers, the observations indicate it is likely that they provide some reductions in emitted expiratory particles, in particular the larger particles (> 0.5 μm). We have not directly measured virus emission; nonetheless, our results strongly imply that mask wearing will reduce emission of virus-laden aerosols and droplets associated with expiratory activities, unless appreciable shedding of viable viruses on mask fibers occurs. The majority of the particles emitted were in the aerosol range (< 5 μm). As inertial impaction should increase as particle size increases, it seems likely that the emission reductions observed here provide a lower bound for the reduction of particles in the droplet range (> 5 μm). Our observations are consistent with suggestions that mask wearing can help in mitigating pandemics associated with respiratory disease. Our results highlight the importance of regular changing of disposable masks and washing of homemade masks, and suggests that special care must be taken when removing and cleaning the masks.
https://slickdeals.net/f/14345831-honeywell-n95-mask-20-pieces-41-95-shipping-no-tax?v=1&page=12
Also, they didn't fit my face well. Will be donating these to someone and not biting again on a molded/cup-style face mask.
Thank you OP.