R. had kept his probably-acquired-used humidifiers for a decade or more, until we finally got a whole-house humidifier. Then we moved, after getting rid of the old ones (don't worry -- they went to new homes). After a few days of delay (and the preschool getting ever more antsy about the persistent cough), I finally said enough and took A. down to the hardware store (yes, a neighborhood hardware store, that normally I would walk or bike to, but I was concerned the boxes would be too big to get home, especially with A. Also, it was around dusk), where we bought a small one for T.'s bedroom, and a big one for the downstairs. The big one is weird: it's basically a bucket with a fan on the top and this weird filter/wick thing in the middle. It's difficult to believe something this minimalist can possibly be safe to have around small children. I will be watching carefully to see how they react to it.
In the meantime, _I_ think T. slept better last night, altho possibly that's just because I left the noise machine on last night so he didn't wake me up with the coughing. I definitely slept better, but not due to the humidifier. I am definitely coughing less today, now that the humidifier is running downstairs. We'll see how my skin does.