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yosh

Oh I just found a fantastic resource for air purifiers:

docs.google.com/spreadsheets/u

It’s a spreadsheet for various locations, comparing air purifiers by price, Clean Air Delivery Rate (CADR), and noise. Including useful stats like price/CADR, and CADR/dB. I’m so so so going to be using this!

Pouring one out for the Miele PAC 1200, which is labeled to provide 1500m3 of clean air per hour, at just 59dB. That’s between the sound of a household refrigerator and a whisper. It seems to no longer be produced though.

For comparison: my IKEA air purifiers at home have a CADR of 125m3/hr at 60dB.

@yosh I appreciate that CADR was the second item of your list. #LispJoke

@jrose I actually don’t know Lisp that well, can I ask you to explain the joke? 😅

@yosh Whoops! Lisp builds everything on pairs, the elements of a pair are the CAR and the CDR (“could-er”) because those were the names of the registers on the original machine Lisp was designed for, lists are made up of chained pairs with the element in the CAR slot, these weird names have stuck around at least partly because they compose (nearly-pronouncibly, even). So CADR (“cad-der”) is CAR-of-CDR, which comes out to the second element of a list.

@jrose ahahah, okay okay I see! — that’s pretty funny if you know Lisp. Thank you for explaining!

@yosh these kinds of stats are invaluable and I wish reporting on them and auditing them were more common

the only other case I've seen on something like this is rtings, who mostly do third-party tests of audio equipment so you can just compare stats instead of having to trust "wow, this product is good!" reviews

@yosh The one incredibly value piece of data missing from this list:

Do they resume the previous setting after a power-loss?

@yosh @jcorbin might be relevant to your interests