Mask recommendations for ordering online (NA)
Note: for consistency, practicality, and simplicity all prices are listed in USD.
masknerd has a comprehensive data set on hundreds of masks he's tested according to his own criteria and methodology (pinned tweet). find his recommendations on his youtube channel. many of the following are on his list as well!
DISPOSABLE MASKS
3M Aura and Vflex: one of the most commonly recommended brands of N95. Where to buy?
- US: see here
- Canada: see here
- Multiple sizes per model. These suppliers are good for bulk ordering. If you aren't sure if something will fit you, check out the sample kits in the next recommendation
- Price point: varies from $1-1.3 USD per mask depending on supplier
Breatheteq (US):
- KN95s that come in small, medium, large, or XS (kids)
- Offers sample kits so you can test out what your size is
- Comes in a few different colours. shoutout to the lavender
- Earloop only
- Price point: $69.75 USD for a 50-pack (~1.4 USD per mask)
Canadastrong (Canada):
- The Canadian equivalent to Breatheteq, but also carries N95s of other brands such as 3M Aura and Vflex, Vitacore, and Drager X-plore
Vitacore (Canada and US):
- N95 certified, but actually has 99% filtration
- Both earloop and head strap versions (warning that the head strap seems to fit considerably smaller)
- Regular and small adult sizes offered, also a kid's size
- Price point: $33.99 for a 30-pack (~1.1 USD per mask)
Wellbefore (US, ships to Canada):
- N95s, KN95s, and KF94s
- Head straps, normal earloops, or adjustable earloops depending on model
- Kids/petite size available for certain KN95 models
- Wide range of colours (excluding N95s)
- Price point: varies per model, from $0.79 USD to $2.09 USD per mask
- Also sells Covid tests, over the counter medication, and medical supplies
Masklab (US):
- This is an indulgent option for if you want to go out and look good, while still staying safe. These are masks that are part of your outfit
- FFP2 certified, equivalent to KF94s
- Standard size and slim fit series
- Many beautiful patterns
- Price point: $24.44 USD for a 5-pack ($4.88 per mask) for the patterned KF ones, ~$3.4 USD for the plain KF ones, ~$3.3 USD for the slim fit series, including patterns.
ELASTOMERIC MASKS
Flomask (US, ships to Canada):
- Reusable elastomeric mask (with replaceable filters) that meets KN95 standards
- Two adult sizes (low/medium nose ridge and medium/high nose ridge) and a kid's size
- Adjustable straps
- Price point: $122 USD. 50-pack replacement filters: $81.46 (filters to be changed after 20-40 hours of use, depending on filter type)
A humble P100 elastomeric respirator from your local Home Depot or similar store! Magnitudes cheaper than the Flo mask (both the respirator itself and the filters)--however, I can't offer estimates for how often filters should be replaced. May not look pretty, but the most economical option for the highest degree of filtration if you aren't self-conscious.
General advice:
N95 or higher are the most reliable. They normally come with head straps, which offer better protection by making a tighter seal around your face.
But fit and comfort are the most important! Find a mask that fits your face and leaves the least amount of gap possible. KN95s are often more comfortable and breathable--find what's right for you.
You can wear different masks for different situations depending on risk level!
If you're hesitant to buy online, here's advice on how to tell if your respirator is legitimate.
A SIP drinking valve can be installed on any disposable mask to allow you to drink in public with less risk.
If anyone has other recommendations, please feel free to add!
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crows use tools and like to slide down snowy hills. today we saw a goose with a hurt foot who was kept safe by his flock - before taking off, they waited for him to catch up. there are colors only butterflies see. reindeer are matriarchical. cows have best friends and 4 stomachs and like jazz music. i watched a video recently of an octopus making himself a door out of a coconut shell.
i am a little soft, okay. but sometimes i can't talk either. the world is like fractal light to me, and passes through my skin in tendrils. i feel certain small things like a catapult; i skirt around the big things and somehow arrive in crisis without ever realizing i'm in pain.
in 5th grade we read The Curious Incident of the Dog In The Night-time, which is about a young autistic boy. it is how they introduced us to empathy about neurotypes, which was well-timed: around 10 years old was when i started having my life fully ruined by symptoms. people started noticing.
i wonder if birds can tell if another bird is odd. like the phrase odd duck. i have to believe that all odd ducks are still very much loved by the other normal ducks. i have to believe that, or i will cry.
i remember my 5th grade teacher holding the curious incident up, dazzled by the language written by someone who is neurotypical. my teacher said: "sometimes i want to cut open their mind to know exactly how autistics are thinking. it's just so different! they must see the world so strangely!" later, at 22, in my education classes, we were taught to say a person with autism or a person on the spectrum or neurodivergent. i actually personally kind of like person-first language - it implies the other person is trying to protect me from myself. i know they had to teach themselves that pattern of speech, is all, and it shows they're at least trying. and i was a person first, even if i wasn't good at it.
plants learn information. they must encode data somehow, but where would they store it? when you cut open a sapling, you cannot find the how they think - if they "think" at all. they learn, but do not think. i want to paint that process - i think it would be mostly purple and blue.
the book was not about me, it was about a young boy. his life was patterned into a different set of categories. he did not cry about the tag on his shirt. i remember reading it and saying to myself: i am wrong, and broken, but it isn't in this way. something else is wrong with me instead. later, in that same person-first education class, my teacher would bring up the curious incident and mention that it is now widely panned as being inaccurate and stereotypical. she frowned and said we might not know how a person with autism thinks, but it is unlikely to be expressed in that way. this book was written with the best intentions by a special-ed teacher, but there's some debate as to if somebody who was on the spectrum would be even able to write something like this.
we might not understand it, but crows and ravens have developed their own language. this is also true of whales, dolphins, and many other species. i do not know how a crow thinks, but we do know they can problem solve. (is "thinking" equal to "problem solving"? or is "thinking" data processing? data management?) i do not know how my dog thinks, either, but we "talk" all the same - i know what he is asking for, even if he only asks once.
i am not a dolphin or reindeer or a dog in the nighttime, but i am an odd duck. in the ugly duckling, she grows up and comes home and is beautiful and finds her soulmate. all that ugliness she experienced lives in downy feathers inside of her, staining everything a muted grey. she is beautiful eventually, though, so she is loved. they do not want to cut her open to see how she thinks.
a while ago i got into an argument with a classmate about that weird sia music video about autism. my classmate said she thought it was good to raise awareness. i told her they should have just hired someone else to do it. she said it's not fair to an autistic person to expect them to be able to handle that kind of a thing.
today i saw a goose, and he was limping. i want to be loved like a flock loves a wounded creature: the phrase taken under a wing. which is to say i have always known i am not normal. desperate, mewling - i want to be loved beyond words.
loved beyond thinking.
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Navigating Deep Space by Starlight
On August 6, 1967, astrophysicist Jocelyn Bell Burnell noticed a blip in her radio telescope data. And then another. Eventually, Bell Burnell figured out that these blips, or pulses, were not from people or machines.
The blips were constant. There was something in space that was pulsing in a regular pattern, and Bell Burnell figured out that it was a pulsar: a rapidly spinning neutron star emitting beams of light. Neutron stars are superdense objects created when a massive star dies. Not only are they dense, but neutron stars can also spin really fast! Every star we observe spins, and due to a property called angular momentum, as a collapsing star gets smaller and denser, it spins faster. It’s like how ice skaters spin faster as they bring their arms closer to their bodies and make the space that they take up smaller.
The pulses of light coming from these whirling stars are like the beacons spinning at the tops of lighthouses that help sailors safely approach the shore. As the pulsar spins, beams of radio waves (and other types of light) are swept out into the universe with each turn. The light appears and disappears from our view each time the star rotates.
After decades of studying pulsars, astronomers wondered—could they serve as cosmic beacons to help future space explorers navigate the universe? To see if it could work, scientists needed to do some testing!
First, it was important to gather more data. NASA’s NICER, or Neutron star Interior Composition Explorer, is a telescope that was installed aboard the International Space Station in 2017. Its goal is to find out things about neutron stars like their sizes and densities, using an array of 56 special X-ray concentrators and sensitive detectors to capture and measure pulsars’ light.
But how can we use these X-ray pulses as navigational tools? Enter SEXTANT, or Station Explorer for X-ray Timing and Navigation Technology. If NICER was your phone, SEXTANT would be like an app on it.
During the first few years of NICER’s observations, SEXTANT created an on-board navigation system using NICER’s pulsar data. It worked by measuring the consistent timing between each pulsar’s pulses to map a set of cosmic beacons.
When calculating position or location, extremely accurate timekeeping is essential. We usually rely on atomic clocks, which use the predictable fluctuations of atoms to tick away the seconds. These atomic clocks can be located on the ground or in space, like the ones on GPS satellites. However, our GPS system only works on or close to Earth, and onboard atomic clocks can be expensive and heavy. Using pulsar observations instead could give us free and reliable “clocks” for navigation. During its experiment, SEXTANT was able to successfully determine the space station’s orbital position!
We can calculate distances using the time taken for a signal to travel between two objects to determine a spacecraft’s approximate location relative to those objects. However, we would need to observe more pulsars to pinpoint a more exact location of a spacecraft. As SEXTANT gathered signals from multiple pulsars, it could more accurately derive its position in space.
So, imagine you are an astronaut on a lengthy journey to the outer solar system. You could use the technology developed by SEXTANT to help plot your course. Since pulsars are reliable and consistent in their spins, you wouldn’t need Wi-Fi or cell service to figure out where you were in relation to your destination. The pulsar-based navigation data could even help you figure out your ETA!
None of these missions or experiments would be possible without Jocelyn Bell Burnell’s keen eye for an odd spot in her radio data decades ago, which set the stage for the idea to use spinning neutron stars as a celestial GPS. Her contribution to the field of astrophysics laid the groundwork for research benefitting the people of the future, who yearn to sail amongst the stars.
Keep up with the latest NICER news by following NASA Universe on X and Facebook and check out the mission’s website. For more on space navigation, follow @NASASCaN on X or visit NASA’s Space Communications and Navigation website.
Make sure to follow us on Tumblr for your regular dose of space!
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Totally didn't write Tim being confused.
WC:1174 Masterpost
“So are you going to want in on it?” Jason asked without looking over at Tim. If his brother wanted to follow after him on his mundane patrol, let him.
“You’d be okay with that?” Tim asked, unable (or not trying to) keep the surprise out of his voice.
Jason just shrugged, sure to exaggerate the motion to show through his armor. Tim had done him a favor with this research, Jason figured he earned a spot on the bust. Besides, Jason was… trying. He couldn’t make up for what he’d done to Tim, but he could try to be better now.
“Yes, sure,” Tim said in response to the shrug. “Just let me know when and I’ll make sure the others know to cover my route that night. Or nights, if you need help planning?”
Gut reaction was to growl at the offer of help planning, but Jason forced the sound back down into a noncommittal noise. He was better now. He didn’t need to do everything himself. His goons, and god he still didn’t like that name but whatever, proved that. Crime Alley was better because of them. “Maybe. Lemme look over your data first. I’ll let you know.”
“Right, sure, of course,” Tim said with an aborted flutter of his hand. “Just let me know.”
Fuck, Jason really should say yes, let Tim help. “Yeah, I will. Just need to go over what you’ve got, get my head around it, you know?”
Tim nodded. Some of his hair slipped out of the hair tie that he had it pulled back into. Jason thought it was good for the kid to be growing his hair out, getting out of that perfect corporate box he put himself into too much, but he didn’t know how to say that in a way that wouldn’t offend Tim or make him feel judged, so Jason kept quiet.
In the quiet it was very easy to hear a too familiar voice growl, “I said back off! I’m not interested!”
Jason sighed, the noise threatening through the modulation of the helmet, and turned to run over the roof tops towards the voice. He could feel rather than hear Tim change directions with him, ever the loyal shadow.
-
Tim perched on the edge of the roof that Jason was leaning over.
“Come on, my money’s good,” huffed some dude. He must have gotten out of his car to confront the sex worker who had turned him down. Which beyond being rude, no still meant no even if the person was a sex worker, it was clear the worker was done for the night. They were carrying two handfuls of plastic bags and Tim could smell the food from the roof.
“I said no, dude,” they said. “Go find someone working a corner if you need it that bad.”
“Yeah, they don’t have what you have,” the guy said. Then he did the stupidest thing he could have done and reached out while the sex worker pulled away.
Jason was already over the ledge of the roof before Tim had twitched. He landed with a purposeful crunch on the battered asphalt and had his gun drawn and pointed as the guy spun around.
“You new to the Alley?” Jason growled.
The guy (who looked two seconds away from pissing his pants) shook his head.
“Then you should know the rules,” Jason said. He stepped forward and pressed his gun against the guy’s temple.
Tim’s gaze flicked between Jason and the sex worker, who was looking on… fondly? Something else was going on here.
“I see you fucking with people like this again and you’ll lose something important, got it?”
“Got it,” the guy squeaked.
“Get out of here.”
The guy scrambled back to his car and took off with a squeal of tires. Tim jumped down silently while Jason holstered his gun and turned to the sex worker.
“Hood!” They said with a bright smile.
“Danny,” Jason growled. “What are you doing out here at this time of night?”
“Delivering some dinner to Nickie and the girls,” Danny said, holding up the plastic bags in his hands.
Jason’s fingers twitched like he wanted to run a hand over his helmet (or strangle the other). “Dressed like that?”
The worker, Danny, pouted and looked down at his outfit. There was a large sliver of stomach exposed between the bright green crop top with a pattern of cartoon ghosts, tiny black shorts with magenta details, and knee high black boots. Tim sort of thought the look worked for him in an eye searing way.
“Oh come on, I’m going to see Nickie. You know I have to dress right or she’ll drag me off to another makeover. I can’t take any more makeovers, Hood. And… don’t you think I look good?”
“Of course you look good,” Jason said.
Tim’s head whipped over to stare. He had to purposeful close his mouth before he caught flies.
Danny’s pout grew. “Then what’s the issue?”
“The issue is people are going to think you’re a hooker.”
Wasn’t he?
Danny rested a hand on his hip and raised a brow at Jason. “You say that like being a hooker is a bad thing. Do I need to tell the girls you said that?”
“You know what I mean!” Jason argued. “You just had a pushy John try to pick you up!”
“And I was handling him!”
Jason growled again and took a threatening step forward. Instead of being cowed by it, Danny stepped up into Jason’s space, basically pressing himself along Jason’s looming form. And then Danny stood up on his tip toes and pressed a kiss to Jason’s helmet, right where his mouth would be.
Tim could hear the dial up tone in his own mind.
What.
It only got louder when Jason sighed and just slumped, the fight going out of him.
“Danny…”
“I’m fine, Hood. Look, I’ll take the food to Nickie and stay with the girls until you can walk me home. Or your little shadow can.”
When Jason’s head jerked up to looked at Tim, he couldn’t help the instinct to raise his hands innocently.
Jason just grumbled and let his helmet drop onto Danny’s slim shoulder, which started shaking with laughter.
“Shut up,” Jason said.
“You forgot he was there, didn’t you?” Danny asked. He transferred all the food to one side so that he could run a hand over the helmet and down to Jason’s neck.
Jason letting someone touch him so casually, especially as Red Hood wasn’t helping Tim’s brain reboot.
“Red, get your ass over here,” Jason said.
Tim figured it was best to listen with whatever the fuck was going on here. He slipped out of the shadows while Danny turned around, tucked himself back into Jason’s arms, and smiled at Tim.
“Red, Danny. Danny, Red Robin, one of the Bats.”
“Hi,” Danny chirped cheerfully and held out his empty hand.
“Hello,” Tim said, shaking it mostly on instinct. What the fuck was going on here?
---
AN: Oh look! Another Bat finally meets Danny! Tim is so, so confused. I'm not feeling well at all, so I went back to the tried and true fic that I'm not writing. It's been a while since I haven't written it, hasn't it?
I no longer tag, but you can subscribe to the masterpost here.
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raffle for palestine
hi everyone, in an attempt to raise money for PCRF and UNRWA, I am organising a raffle on tumblr.
how do i register?
make a donation (any amount is a good amount) to either PCRF or UNRWA, then send me the donation receipt via email (
[email protected]), dm or ask. both organisations accept donations via credit card and paypal.
what's the prize?
tatreez is an important part of palestinian cultural heritage. it's the traditional palestinian form of cross-stitch with different regions, and even different villages, embroidering their own style of tatreez.
some time ago I came across Lina Barkawi, aka @ linasthobe on instagram. please go check her out, she is an amazing artist.
this is what I made using her pattern "I Love You, Oh Homeland"*:
as it is my first time ever doing any type of cross-stitch, it is far from perfect and more of a symbolic prize—but I hope it will find a nice spot in the winner's home :)
how do you choose a winner?
the raffle will run from today (February 16 2024) to February 23 2024. I will then choose a winner via randomizer and contact the winner.
important:
the winner must be willing to share a valid address where I can send the prize to. it can be the address of someone you trust, too - just please get their consent first. of course I will treat your data confidentially.
i'm willing to ship internationally so as many people as possible can join!!
*btw: you can get this pattern on Lina's instagram page as a freebie ❤
for transparency's sake, I got permission from Lina to make this post beforehand.
more from Lina:
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