https://dynomight.net/air/ estimates that using an ultrasonic humidifier for one night shortens your life by 50 minutes. Getting rid of any ultrasonic humidifiers is his top tip to extend your life cheaply.
I am aware that cars are ruining millions of people's health. That car drivers are privatising the convenience and externalising the harms of driving. That car drivers are a privileged, wealthy, class of people who can literally kill others and walk away without a jail sentence using the defence "I didn't see them":
Sure. And if any particulate emitted by an ultrasonic humidifier could be dangerous enough to shorten your life by ~10% with consistent use or 50 minutes per roughly 8-hour night's sleep as this timecuber of yours appears to claim, then I should think the tire and brake dust burden anywhere near an actively used road would be not just instantly but flagrantly fatal.
I'm aware of the hundred thousand words spent justifying the idea. I will consider reading them once I've been convinced to ignore the result of this trivial - and I do use the following phrase with careful consideration aforethought - sanity check. You'll more likely give the goalpost another kick, though, I suspect.
Explain where I have given any goalposts any kick at all?
From the articles:
> A good heuristic is that an increase of 33.3 PM2.5 μg/m³ costs around 1 disability-adjusted life year. Correia et al. (2013) estimated something close to this from different counties in the US, and more recent data from many different countries confirm this. The most polluted cities in the world have levels around 100 PM2.5 μg/m³.
> When inhaled during an 8-hr exposure time, and depending on mineral water quality, humidifier aerosols can deposit up to 100s of μg minerals in the human child respiratory tract and 3–4.5 times more μg of minerals in human adult respiratory tract.
> (Yao et al., 2020)
The amount of particles people breathe in in a night of worst case ultrasonic humidifier use is 8x more than the particle level in the air of the most polluted cities in the world.