Fio

why i’m leaving the HR fandom 👇 on harassment, AI accusations, and a startling lack of fandom etiquette:

Covid conscious hive mind: I am searching for a round HEPA filter that will fit into a 10cm diameter ventilation hole. Any ideas where I can find this?

If I catch any one of you leaving critiques on my fics in a public bookmark because you think ao3 should be like goodreads I’ll block you so fast it’ll knock your wifi out.

I forsee an imminent influx of new KimChay fics.

Aww… 🥰🥰🥰 #Hollanov

@Engineer_Wong Are you aware of the Big Quiet Fan project? Perhaps you should have a chat with @open_erv 😊

People often ask me: can the noise level of the AirFanta 3Pro be made lower? It’s not a question I can answer with a simple yes or no. I’d like to take this opportunity to explain why air purifiers are often designed with a certain level of noise—rather than being made as quiet as possible. First, the main source of noise in an air purifier comes from air being accelerated and colliding with itself. For a given fan, the higher the rotational speed, the greater the airflow, and the louder the noise. Suppose Fan A: At 2,000 rpm, airflow is 100 m³/h and noise is 50 dB; At 3,000 rpm, airflow is 150 m³/h and noise is 58 dB. Now suppose we replace it with a better fan, Fan B: At 2,000 rpm, airflow is 100 m³/h and noise is 48 dB; At 3,000 rpm, airflow is 150 m³/h and noise is 56 dB. Under the same conditions, Fan B is 2 dB quieter than Fan A. So if we put Fan B into an air purifier, will the maximum noise level be reduced? This sounds counterintuitive, but usually the answer is no. Why? Because people have different tolerances for noise, and sometimes air purifiers are used in unoccupied spaces. Therefore, one of the key goals in product design is to provide a wide adjustment range in airflow and noise to suit different users and scenarios. A wider range gives users more freedom; a narrower range gives them less. The only hard constraint is that the noise must not cause harm to human health. That’s why national standards set a maximum noise limit (for example, 68 dB). To give users the greatest freedom, designers typically push the fan’s maximum speed as high as possible, bringing the maximum noise level close to the regulatory limit—this allows the purifier to deliver the highest possible CADR (Clean Air Delivery Rate) when needed. So, if Fan B can achieve the same maximum airflow as Fan A at a lower speed (say, 3,000 rpm) with lower noise, the designer won’t simply lower the purifier’s maximum noise. Instead, they’ll raise the speed limit of Fan B until the noise once again approaches the regulatory limit. The end result: the maximum noise stays roughly the same, but the maximum airflow increases. Thus, the key question isn’t whether the fan itself is quiet enough. Rather, it’s whether—at a noise level you find acceptable—the CADR and the price of the unit meet your expectations. From this perspective, the AirFanta 3Pro is the quietest air purifier in the world. If you spend the same amount of money to buy several 3Pro units and several units from other brands—keeping the total cost equal—and set both all to the same CADR, the 3Pro will have the lowest noise level. One more thing: the discussion above refers only to normal aerodynamic noise. Abnormal noises like bearing rattle should always be avoided in good design. @ThisHouseFresh is a professional reviewing channel, and they understand this principle. That’s why, when comparing air purifiers, they set them to a similar noise level that is generally acceptable to most people—say, 45 dB—and then compare purification speed and price.

some of you think ao3 is goodreads and you need to be slapped a little

WORD!

Grow up & realize that you are not on the moral high ground here. Stop this bullying & mobbing of Nukit already. The only person who has the right to be upset here is Nukit. Gah, every time this bubbles up again it makes me so damn irritated, sorry.

What did you lose except for hurt feelings while realizing that people outside of the USA do not know about specific holidays other than Thanksgiving & 4th of July? Did the police come to your house? Were you physically assaulted? Did you lose the person you love over this? No.

I am so tired of this shit. Why can’t these people leave Nukit alone? Let me hold your hand while I tell you that you feeling affronted is worth NOTHING when compared to the reality of REAL LIFE VIOLENCE that Nukit had to endure because of your shit.

The Human Cost of Failing to Name COVID ‘Airborne’ Pls share widely thetyee.ca/Analysis/2026/…

I'm in a lull on twitter without much visibility, so probably hardly anyone will see this, but here's an important thread on "why everyone's sick all the time". No, you are not imagining it. Sickness is increasing. Sickness absence rates are increasing.

The last time the police brought me in, I got my head smashed on a chair when they wrestled my phone away from me and threatened to detain my partner indefinitely, so yes, this is not First World "words that hurt my feelings are violence". This is "physical violence by proxy is violence".

For many disabled people, the only way they can go out in a eugenic society that will not mask, is with a fit-tested N95 or FFP2 respirator. Those offer a huge margin of safety that no other mitigation can match. Fit testing is incredibly difficult to access. New machines cost $15,000 to $20,000, and rent for $400 a day and up. The COVID-Aware and Disability Advocate community have a small number of refurbished models that cost around $500-$1000 if you can find them and fix them yourself, but are in very, very short supply. Nevertheless, I tried to donate several of these testing machines, specifically to orgs in the US that served the Black community, because they have the least access to fit testing- and the least information on mask fit. I was called a racist for donating the same refurbished machines I use, which we all make do with, instead of brand new $20,000 machines. Once you have the Portacount machine, you need sampling ports- a steel connector that attaches the mask to the plastic tubes through which air is sampled. There is one source for these- TSI, and they charge 50¢ each for them. If you are testing dozens of people, each in multiple masks, as many fit-testing volunteers do, it quickly becomes prohibitively expensive. So, I had a local factory clone and fabricate the sampling ports- tens of thousands of them. I then sent sacks of these to anyone in the world who asked at no charge. I didn't make a big deal about it; I just made sure that for anyone doing the lifesaving work of fit testing in their community, the cost of consumables was on me. I didn't have a grant for this; there was no publicity in it. I don't make or sell masks- in fact, I am the only Far-UVC company that constantly undermines their own product by fanatically pushing masking OVER my own products. I am incredibly proud to have helped @eddericu in a very, very small way by supplying several thousand sampling ports. With the measurements he took, and the app he built, every single fit test and each sampling port used benefits thousands of people, not just the wearer, by giving them access to better-fitting masks and a higher degree of protection- even if they don't have access to a portacount machine.

I’m using this as an example, but I have been dealing with this a lot lately. Writing is a hobby for me find joy and escapism in, I never imagined that one day I would have so many people engaging with my work, and I am so deeply grateful and flattered by that… but also somewhere along the way I started running into this more and more frequently. I’ve been receding from social media to avoid commentary like this because it really messes with my head. (1/3) But it’s harder and harder to avoid now.

@eddericu @JoannaTeglund @NoHealthNoFun @zhouliang_mask I’m in Sweden and it’s not (yet) in our App store.

@NoHealthNoFun @zhouliang_mask It should be available in 175 countries. And yes, I have Zimi masks in there, though I could use more data especially from those with very small faces (toddlers, young kids e.g. 95S) and those with very large ones (those who fit B95-XL)

Happy to publicly announce that MasqFit is now available in the iOS App Store! apps.apple.com/ca/app/masqfit…

The magical “aerosol” vanishing trick is now complete 🪄 Bang smack in the middle of the Meningitis outbreak in England, the WHO decided that was the perfect time to take their Meningitis page offline for 4 days… …and now it’s back, the word “aerosol” has magically vanished!

Yes, I have written a Hollanov serial killer AU. It’s like a dark rom-com. Funny & unhinged. archiveofourown.org/works/77555456