Oh, well. It bought it to replace an over the register humidifier that was leaving me at 16% RH. After a day, this unit left me at the same RH--in a 12x15 room--which is half the rated capacity. Hmmm.
So I put it on the table. Not preferred and it's taking up space. It finally got up to 26% RH after two days and about 15 gal. of water. Where'd they get the 48 hr. rating? It must be for slow automatic and very low humidity settings.
The carry handle on the fill side feels cheap and I keep waiting for it to crack, but it has held up when full--four days now. This machine uses a LOT of water!!
The meter is accurate--within 1%--as verified by external humidistats in the same room.
Although the manual says it will show from 21% to 90% as its limits, mine flickers between 20 and 21 when it gets in that low area.
The filter shows good for about a day then goes to replace, but that meter is misleading. I take it out, rinse it off and replace upside down from the last time and it is fine. The meter goes back up. Adding a small amount of vinegar or lemon juice to the water is mnimizing lime build-up.
The automatic settings will not let you go to the acceptable humidity range bottom edge. Although 25% to 40% RH are considered acceptable (above 45 you start getting into a dust mite/mold spore problem) the automatic settings do NOT go below 30% RH!!
I'd love to get to 40% and saveon heatng bills, but this thing, after three days, has only reached 26%--one time. It was doing pretty well to hold 24% yesterday, but after an all night run on A3 (fast) it was back down to 20% this morning.
It's still better than the floor, over-vent was able to do--maybe. This will not get over 16% either when on the floor; and, consumes more electricity and water to do so.
It is normal for humidifiers to handle rooms half their rated size. This one does not. Perhaps if it was totally sealed, but what good would that do? This is the dining room.
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