Now have added a second warm mist humidifier for another room. I thought it would be a pain to keep two of these going, but it's not much harder than one. This, however, is the opinion of a single man who has more or less complete command over every hour in his day. That said, you can't beat these for reliability and convenience these days (given the exclusion of cool mist due to hard water). The only other household humidifier I've ever used successfully is the evaporative type, but that was several decades ago in Tallahassee, city water. The relatively compact unit held several gallons of water, ran on a small, quiet fan with a washable foam absorbent tube. One end stretched around the circular housing that contained a small quiet fan; the lower end was n contact with the water reservoir. This was too simple and efficient for the good ole USA. The ones available now with the replaceable waffle textured paper filters are ridiculous. Even in NYC, which has some of the best tap water in the country for orchids, these "filters" became gunky and useless in a few days. And somehow I escaped an early, untimely death due to bacterial lung infection. [Enter sarcasm.} Sure, the inside of the older unit eventually became gunky, but it still operated, and with reasonable care it functioned perfectly and lasted for years with no replaced parts. These days,the Honeywell warm mist model works well for a room that can be closed off or opened up depending on the weather and time of year. When I was growing under warm HID bulbs in NYC, I used an auto-fill hydro-fogger. The humidity level was gratifyingly high, but the mist seemed too heavy, too readily condensable, and not appropriate for residential use. The room where I was using it was already a mess so it was okay until time to remodel. But in retrospect, I feel this choice was misguided. I would have done better with a couple of warm mist humidifiers.
