Tatiana Prowell, MD Profile picture
Jan 8, 2022 23 tweets 7 min read Read on X
🧵 Parents of teens looking for N95/KN95/KF94 masks that your teens will wear without complaint, I feel your pain. We are 2 drs w/ 3 teens. We obviously believe in high-quality masks, & we’ve struggled to find masks that fit well & are comfy enough for kids to wear all day. 1/x
Let me start by saying we have no relationship with any mask company, no one gave us any free masks, & no one asked us to review or recommend any mask. Our views don’t represent any employers. Tweeting here as parents & your kids may be different. 2/x
My teens (14, 16, 17) are both sexes & pretty average sizes, especially their faces (unlike their mom…I have a small face & can wear some kids’ eyeglass frames). We started trying the masks that we liked or had ourselves. 3/x
For my small face, I have found the Respokare N95 (size M) to be a comfy mask that I can put on & not need to adjust, & it’s got antiviral coating. It was too tight on them. Size L fit them width-wise but was still too long top to bottom, so would be 👍 for a long/wide face. 4/x
The antiviral coating has kind of a vinegar smell. I don’t mind it. It kind of reminds me of salt & vinegar chips. But one of my kids who is sensitive to smells & textures etc found the smell to be a dealbreaker. May not be a good choice if your kid is the same. 5/x
It comes only in light blue & straps go around head.

We also tried the 3M Aura N95 mask, which seems to be avail all over. We bought it directly off the 3M website, but I know many have found it in the paint aisle of HD, hardware stores, etc. It comes only in white.

6/x
It fits all 5 of us well, despite a pretty dramatic range of face sizes, & we all get a good seal, so if you had to go grab N95 masks for a ✈️ or something & hope they fit, it’s a 👍 bet. The nose wire is covered by soft rubber inside, which makes it comfy. Straps go around head.
Our kids have worn it for higher risk things where I was very worried about aerosol, like singing, & it doesn’t muffle voice, but straps are tight. They wear it w/o complaint it for 2-3 hrs, but all agree they would find it tough to wear for a full school day, day after day.

8/x
My kid who hates anything too tight from clothes to masks finds it too tight & will only stay in it for 20-30 mins before insisting on changing it. Many HCWs wear the Aura at work, so it CAN be worn all day, but the efficacy of a 😷 that’s not worn is 0%. Know your kids.

9/x
Since our kids felt those masks were too short/long, tight, or vinegary, we tried the Kimberly-Clark Kimtech N95 pouch respirator 53358. It comes only in white & has straps around head, but they are a soft kind of fabric, not rubber, so they don’t pull hair whatsoever.

10/x
Because they are thin & have a lot of airspace in front of the mouth, they also get less hot/humid & don’t muffle the voice at all. I thought that made them a slam dunk for school. Alas the teens feel they make them look the most ridiculous of any mask we’ve tried. Sigh.

11/x
They’re still extremely comfortable & affordable. My teens agree you could wear it all day & forget it’s on. (Except for people pointing at them.) A good 😷 for a teen who just wants comfort & doesn’t care if they look different. A good 😷 in home isolation for same reason.

12/x
And finally we tried Powecom GB2626-2019 KN95 mask. It comes in white, black, or pink, & has both ear loop & strap around head style. We got the ear loop one, & all agreed it was very comfy on both their faces & ears. The mask is closer to the mouth than any other.

13/x
But they didn’t find it bothersome. No one found it too hot or humid. No one asked if we were done yet. It’s also pretty affordable at ~$1 each, & it has scratch-off w/ a unique code on each bag you check on their website to know it’s legit (KN95 counterfeits are an issue).

14/x
I suspect part of why they like it is that it’s very well-fitted to the face, but not nearly as tight as a true N95 w/ headstrap is designed to be. It’s the only non-N95 mask we tried with them, & the only one with ear loops. It’s possible they’d like any KN95 just as well.

15/x
Nonetheless all are happy with this one. Being less tight, it’s prob less protective than one of the true N95 masks we tried, but I have far greater confidence they’ll keep it on, which is its true test in the real world. One of them liked it enough to give some to friends.

16/x
Lots of these masks are available via the nonprofit @projectn95, where the people are available 365 days per yr & so helpful if you’re having trouble finding a good match for yourself or your family. They’re affordable too, even without buying a truckload.

17/x
We’ve seen others available via the US-based family-run @BonaFideMasks, which began selling 😷 in 2020 at request of a community org. If you are buying KN95 masks, you should know that up to half of these in the US have been found to be counterfeit. I would strongly suggest

18/x
That you buy these from a place w/ a reputation for vetting its products carefully. Read the About Us section of the website. Or buy a brand that includes a scratch off # or QR code on the bag to enable you to verify the KN95 authenticity on the manufacturer’s website.

19/x
This article is helpful to identify reputable sites: scientificamerican.com/article/why-we…. If you buy KN95 masks in a store, ask the manager where they source their products from. If it’s not the manufacturer directly, might be best to steer clear.

20/x
If you’re still with me, on tweet #21, I think, at midnight on a Friday, you get a 🍪. Parents of teens, drop recs for other high-protection masks your kids like. They may not love to #WearAMask, but #schools will NOT succeed during #omicron w/o them.
Finally, we didn’t try any KF94 masks (the South Korean equiv of our N95; KN95 is the Chinese equiv). We’ve heard of KF94 masks w/ same shape as the 3M Aura & adjustable ear loops that many people say offer a great fit & comfort, but never any in stock, eg Bluna Facefit.

22/x
And finally, a surgical mask that you tie & tuck per this CDC demo () w/ a 😎 cloth mask over top is far better than either alone if your teen just won’t do an N95/KN95/KF94. Most important msg: we’re SO much safer w/ #Omicron when we all #MaskUp. 👇

/End

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More from @tmprowell

Sep 21
NEW 📣 Nat’l study in #Sweden: 86% of people on sick leave due to #COVID19 in wave 1 of #pandemic still had symptoms 18m later, esp fatigue, cognition, sleep, movement. Risks higher if hospitalized or female. Vax didn’t exist then.
#MedTwitter #LongCovid

journals.sagepub.com/doi/10.1177/14…
Image
The study also found nearly half of respondents also had problems w/ functioning in daily life 18 mos after they were infected w/ #COVID19. That is #LongCovid. This is a stunning number.

Sweden never had a full lockdown or mask mandate in wave 1. /2

#MedTwitter
With this approach, #COVID19 deaths were noticeably higher in #Sweden than in neighboring countries with more precautions. For example, see this graph from ABC based on a Johns Hopkins analysis of the region. The King said: “I think we have failed.” /3 au.news.yahoo.com/leaders-tragic…
Image
Read 7 tweets
Sep 5
NEW Longest prospective study of #LongCovidKids: 1.3K kids who tested pos for #COVID19 were followed up to 3y. Of note, 89% of cases were “mild” & 9% had no symptoms, & 80% had zero doses of vaccine. Mix of variants, but most were Omicron then Delta. /1 thelancet.com/action/showPdf…
Image
Sadly, 23% of kids had #LongCovid at 3 mos. While #s fell over time, 13% at 6 mos, 8% at 1 yr, 6% at 18 mos, & 7% at 2 yrs still had #LongCovid. This is tragic, both because it means that 1 in 12 kids are still suffering a year later, & most of those remain ill longer term. /2
Adolescents/teens were at MUCH greater risk than age <12, as were those infected by earlier variants. Females & those w/ comorbidities were also at slightly increased risk. Infection w/ orig variant resulted in ⬆️ autoimmune disease. Vaccination reduced risk of #LongCovid. /3 Image
Read 10 tweets
Aug 28
#MedTwitter #NurseTwitter I have a small but important rant about medical gaslighting. I booked a pharmacy appt for vaccines for myself & my family. This evening when we all went to get them, the pharmacist said to me: “You only booked an appt for yourself, not the others.” 1/
No, I’m sure I booked all of us. I had actually booked a time & when it didn’t let me add others, I had cancelled & rescheduled for an hr later when they could take us all. I explained that to the pharmacist who could SEE the cancellation & rescheduling just as I said, but… /2
She then said “but you didn’t book anyone else, just you.” I insisted I did & described the lengthy process of having to re-enter all the same info (address, insurance info) over & over for each of us. She acknowledged that’s how their computer system makes you enter it… /3
Read 9 tweets
Jun 19
#MedTwitter

Great to see independent groups demonstrate that passive transfer of IgG from people w/ #longCovid (LC) to mice produces symptoms.

A few reactions:

👉 We need #clinicaltrials of repurposed drugs (& novel agents) to treat autoimmune disease now

BUT…
We have GOT to be able to identify patients w/ #longCovid who instead (or also) have persistent #SARSCoV2 &/or other reactivated virus. If we immunosuppress them (w/o treating 🦠), we can inadvertently harm them AND potentially abandon therapy that could help others w/ LC.

2/
Our ability to get products into the 🧠 will be more important than ever. That might be products that already cross the blood-brain barrier or novel product delivery strategies (devices to ferry a product across the BBB or strategies to open/close BBB like a drawbridge).

/3
Read 4 tweets
Apr 29
The postmortem exams of cats who died of #H5N1 #BirdFlu on dairy farms show devastating effects on the heart, lung, eyes, & brain.

‼️Do not consume raw (unpasteurized) dairy products.

#MedTwitter, 👀 at the screenshot. #AvianFlu #IDTwitter

wwwnc.cdc.gov/eid/article/30…
Image
Because some are asking me to translate this, the very brief version is that massive inflammation & cell death occurred in heart, lungs, brain, & eyes of cats who drank unpasteurized milk from cows with #H5N1. In all, >50% of cats at that dairy farm died. #MedTwitter #BirdFlu
#H5N1 #birdflu is likewise very dangerous to us. More than 50% of the people who have tested positive for it globally in the last 20y have died. This is why #MedTwitter is watching closely. Finding increasing cases in humans & esp spreading btwn humans would set off alarms. 😷
Read 4 tweets
Apr 23
NEW: Prosp study in 225 pts w/ “mild” #COVID19 & future surgery or other procedures. People w/ viral RNA detection in tissue or🩸5.2 times more likely to dev #longCOVID symptoms (OR 5.2, 95% CI 2.6–10.1, p<0·0001). Higher copy #, higher odds. #MedTwitter
thelancet.com/journals/lanin…
Months after a positive #COVID19 test, viral RNA was found in 10 diff types of tissue, incl the liver, kidney, stomach, intestine, brain, blood vessel, lung, breast, skin, & thyroid + blood cells, which could explain the wide range of reported #longCovid symptoms. #MedTwitter /2
Growing evidence IMO that #COVID19 viral persistence contributes to many cases of #longCovid, though it’s prob not acting alone. Still learning how genetics, immune response, & reactivation of other viruses in us intersect, producing LC in some people & not others. #MedTwitter /3
Read 5 tweets

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