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Humidifiers: Simpler is better?

55 videos recommended on HN
YouTube
5 HN users recommended this explainer4 months2021–2026 score 4.5
Years with an HN recommendation, 2007–2026

HN links it whenever humidifiers come up as the go-to explainer favoring simple evaporative designs over ultrasonic ones.

Technology Connections explains why humidity matters and compares the main types of humidifiers, including evaporative and ultrasonic designs. It covers how and why you would add moisture to indoor air.

“Technology connections covers quite a bit of ground on various types of humidifiers and their up/downsides” (HN, 2021)

1 strong recommendations · 4 recommendations · 3 citations · Explainers

8 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@bcjordan Sep 2022 Strongly recommends
on HN thread Interest in heat pumps has increased dramatically in recent years
Came here to post this :D The TC channel is definitely a hacker's eye view in to all the technologies that we take for granted every day. Tons of fascinating tech history covered, too. Other fun ones: - a defense of the simple drip coffee maker [link] - why do the turn signals not sync up when you're at a stop light? [link] - how humidifiers work and ehy the simple swamp cooler style are pretty ideal [this video] - why dishwasher detergent packs are stupid (use powder/liquid) and why you should use the pre-wash slot and not bother pre rinsing your plates [link] - why do light switches click? [link]
Explains how humidifiers work; swamp cooler style is ideal
@riggsdk Feb 2021 Recommends
on HN thread Humidifier: Healthy or Harmful?
Technology connections covers quite a bit of ground on various types of humidifiers and their up/downsides: [this video] [link] [link]
Covers types of humidifiers and their pros and cons
@xaduha Apr 2021 Recommends
on HN thread The health benefits of better air
Ultrasonic one is my first, only started paying attention to all this stuff because of 2020 and went all in, just trying to make my home a less crummy place. Watch this [this video] Optional follow-ups: [link] [link]
Guidance on choosing humidifiers
@cheschire Mar 2022 Recommends
on HN thread Why is it hard to buy things that work well?
Were your humidifiers just not good at making air moist? Or were they completely non-functional? Technology Connections had a good video on the quality of humidifiers: [this video]
Good video on humidifier quality

Citations, criticism and jokes

@garfieldnate Apr 2021 Cites it
on HN thread The health benefits of better air
Technology Connections did a video on humidifiers, and if I remember correctly the evaporative ones weren't actually slower than the ultrasonic ones: [this video]
Evaporative humidifiers not slower than ultrasonic
@an-internet-guy Dec 2021 Cites it
on HN thread Avoid Ultrasonic Humidifiers
Yes. We recently moved up to a place with real winters, and I got a series of humidifiers. I run air quality sensors indoors (yes, multiple), and indeed the ultra sonic ones kicked up a CRAZY amount of PM2.5s, PM1s, and PM10s. We now only use evaporative humidifiers. And of course, this guy has a video for this! [this video]
Supports preferring evaporative over ultrasonic humidifiers
@schiffern Mar 2026 Cites it
on HN thread Microplastics and nanoplastics in urban air originate mainly from tire abrasion
Read more
>I think not using an ultrasonic humidifier would be better stated as only using distilled water with ultrasonic humidifiers The common misconception is that they're "safe" if you only ever use distilled water. In reality they still atomize gunk and bacteria from the tank, because nobody ever cleans & sterilizes their dehumidifier tank often enough. Distilled water users still report high indoor particle counts when it runs, which is how you know it's ineffective as a mitigation). The cost of distilled water every year (even making it at home) means ultrasonic humidifiers are the most expensive option too. Just use an evaporative pad humidifier. [this video]
Supports using evaporative pad humidifiers

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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