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Lisa Foreman APRN-C Profile picture
Lisa Foreman APRN-C
@findmeabluebird
Dermatology NP. #CovidisAirborne. Fit Test/Portacount Enthusiast. 🔗= N95 Dental Mask Hack.
2 subscribers
Jan 14 • 9 tweets • 3 min read
Need mask mods to improve fit? Here are 4 top recs: SHAPE, SHAVE, STRAPS, & STAPLE! I can attest that fit test scores usually go up with these mods.

Adding a 5th: STICK! Keep reading for tricks with tape, then come back to @ParentMishmash's thread below for the other recs. 🧵 A strip of double-sided fashion tape can be placed inside the mask along the nosewire; this is normally not needed for masks with nosefoam, but can be VERY helpful for masks without it-- such as bifolds, Breatheteqs, etc. Or if having to remove the nosewire for an MRI.
Nov 18, 2025 • 11 tweets • 2 min read
New Breatheteq KN95 headstrap: Review and Portacount Fit Testing-- 🧵 Black Breatheteq medium earloop and black Breatheteq medium headstrap (probed for testing)
Black Breatheteq earloop and black Breatheteq headstrap masks Details: KN95 headstrap respirator with nose foam and improved nosewire. Available in white and black, sizes medium and small. White mask/white straps, black mask/gray straps
Aug 26, 2025 • 11 tweets • 2 min read
Actual convo at recent oral surgeon consult: 🧵

Me: Just so you know before I take off this mask, I’m wearing an odd-looking yellow N95 Readimask adhesive nose mask underneath. I fit-tested it and it passes

Surg: Oh, it’s so cute! Ok, what about anesthesia? Me: Just local, please. I have to be fully awake to monitor the mask seal, but pinky promise I’m a good patient, won’t make any trouble!

Surg: That’s fine
Jul 3, 2025 • 19 tweets • 5 min read
~ Readimask Application Practice and Tips: Normal Wear and Nose Hack ~

Need to practice Readimask application for dental, haircuts, or MRI, but don’t want to waste expensive masks? Make a mockup! 🧵

See alt text for disclaimers. Stack of yellow Readimasks fanned out over a Ziploc bag. I have no connection to the Readimask manufacturer or any suppliers, nor have I received any free product, but I do have an interest in helping people avoid airborne pathogen infections. You will need: paper towels, scissors, a pen, a roll of double-sided Scotch tape (yellow pkg), and Readimasks.
Jun 16, 2025 • 34 tweets • 11 min read
DIY Dental Mask Build and Fit Testing: Part 2 of 2

First, appreciation and thanks to @DentalMasks for sharing this protective tool w all of us!
NB: this is my DIY build using the inventor’s open-source instructions.

Please see alt text in Part 1 thread below for disclaimers. Advice: Read entire build thread (parts 1 & 2) first in order to understand the process and gather supplies. This project takes time, but can be divided into a few sessions for convenience. Don’t wait until the night before a dental appt, or a dental emergency!

On to part 2--
May 17, 2025 • 22 tweets • 7 min read
DIY Dental Mask Build and Fit Testing: Part 1 of 2

Ok, here it is-- behold, my DIY Dental Mask! If I can do it, you can too. DIY Dental Mask made of snorkel, portable dust fan, and P100 filter @DentalMasks is the inventor associated with this Kanro-funded project. I have no affiliation with the project other than familiarity with their work, a shared interest in masks and fit testing, and a desire to help people avoid infections at the dentist. This thread will be done in two parts due to level of detail and pics/vids. Portacount fit testing results will be saved for Part 2 (coming soon). Spoiler: It blows the Readimask hack out of the water!
Mar 31, 2025 • 49 tweets • 8 min read
~ The Dental Mask: DIY Info, Parts List, and Notes ~

Here is everything needed to make your own Dental Mask at home! 🧵 This mask comes courtesy of @DentalMasks who designed and tested it. They have received Kanro funding to make and send the devices– free of charge– to mask blocs and collectives over the next year.
Jan 8, 2025 • 12 tweets • 2 min read
How to Avoid Infections by Shaping a Nosewire: Little Red Riding Hood Edition (hear me out)-- 🧵 A red velvet cape with a ribbon tied into a bow at the neck No matter what mask you wear, if it has a nosewire: the single most important thing you can do to maximize the protection of that mask is to properly shape the nosewire.
Dec 31, 2024 • 16 tweets • 4 min read
Coming soon to a mask bloc near you (and your home if you’re crafty): the dental mask! It’s designed by @DentalMasks, a Kanro-funded project to help protect ppl from infectious aerosols during dental work. 🧵

See alt text for info and disclaimer. A display of clear snorkel masks w blue straps, packages of valves, and a box containing a portable blower motor Disclaimer: I have no connection/affiliation with this project other than friendship w the person/s working on it, familiarity w their work, and most of all a desire to help ppl avoid infections at the dentist.
Dental hygienist cleaning a child's teeth; child is wearing a dental mask The dental mask uses a snorkel, a portable blower fan, and P100 filters. It has been Portacount-tested to verify efficacy, and currently is undergoing final stages of optimization.

H/t @MariaMGillespie for pic, modeling prototype demo Dental mask w anti-glare film over eyepiece
Caucasian female wearing a dental mask while hygienist cleans teeth
Nov 15, 2024 • 11 tweets • 2 min read
You can’t find what you don’t look for…

@CIDRAP says “US hospitals saw declines in HC-associated infections last year”. This begs the question: which HAIs are being reported?

CDC: US hospitals saw declines in healthcare-associated infections last year cidrap.umn.edu/healthcare-ass… The types of infections referenced are tied to Medicare reimbursement. They include central line, urinary catheter and ventilator-associated infections, and MRSA and C diff infections, among other tracked measures.
Jul 19, 2024 • 4 tweets • 1 min read
Two days ago, the CDC sent out this advisory to U.S. clinical labs. It contains instructions for conjunctival swab collection and other symptom-based swab types for suspected H5N1. Specimen collection graphic posted below--

cdc.gov/locs/2024/07-1… cdc.gov/bird-flu/media…
May 4, 2024 • 13 tweets • 2 min read
💥 Fit-Test Fun: 3M Aura Smash-Up 💥

Inspired by the question below, I recently decided to test a worn-out Aura to see if it was still protecting me. The results were surprising! See alt text for disclaimers.
⬇️


Pic of dirty, worn-out 3M Aura respirator Disclaimer: I have no relationship to any mask companies. I pay out of pocket for all masks used for testing, or receive them from other testers. There was just one problem: I didn’t have a totally worn-out Aura. Luckily, after searching the car I found a questionably past-its-prime 3M 9210+ Aura used for recent eclipse travel. ⬇️
Aug 19, 2023 • 52 tweets • 10 min read
📣 Can’t get Pax for Covid infxn? Or worried you won’t be able to? One-stop shop for info here. Bookmark and share!

Paxlovid: U.S. Resources— long 🧵
Bonus: Metformin info at the end-- Image Many providers are not aware of this updated guidance, but it is important info w issues of false negative RATs/PCRs and + test result delay of up to a week after symptom onset. FDA reference here: 🔽

fda.gov/media/155052/d…
May 30, 2023 • 4 tweets • 1 min read
Just did a “what is this rash” curbside consult for a friend. From pics and history, I’m 99.9% sure it’s multidermatomal shingles… in a 13 yr old. This type of shingles involves multiple adjacent dermatomes and is usually seen in patients who are immunocompromised. 🔽 This person is a 13-yr old w past history of varicella vaxx and no known recent illness/comorbids.

In my 20+ yrs of practice, it’s been uncommon to see shingles even in younger adults, much less pediatric zoster— and it should be even less common w history of varicella vaxx. 🔽
Oct 29, 2022 • 24 tweets • 6 min read
🚨 The Kids are not Alright! 🚨

We have a pediatric illness soup, boiling over with school closures and overflowing hospitals in over a dozen states. Why are we allowing the large-scale pain and suffering of innocent children? They’re depending on us to save them. 🧵 Maine—

pressherald.com/2022/10/27/cap…
Aug 10, 2022 • 13 tweets • 9 min read
Let’s support our U.S. and CA mask manufacturers— they’ve been there for us! Order now before the inevitable back-to-school fall and winter surges. Upgrade to a more protective elastomeric respirator like one of these:

⬇️ @flo_mask (adult and kids Flo)

@envomask (Envo)

@Prescientx1 (Nano and Breathe)

@TreborRx (Pro+)

Softseal.com (Softseal 3D)

@DentecSafety (Comfort Air)

gvs.com (GVS Elipse)

@3M (Various, i.e. 7500 series)

⬇️
Jul 10, 2022 • 12 tweets • 4 min read
Re-upping this dental mask hack vid: adding comments, fit testing results, ordering and discount/coupon info below. Please RT— we all need 🦷 work! ⬇️ Comments on this hack:

- It is not a Readimask-approved use and is not NIOSH-approved for nose-only wear
- This use is a mitigation, not a guarantee (obviously the nose and mouth are connected, and the mouth is open for dental work)
- I have no connection to the company ⬇️