Sjean in California, I use pebbles and stainless steel trays. I have 21 square feet (2 square meters) at two different locations on two levels of the house. Most of the orchids are placed in open baskets on the rocks. Most of the orchids (and bromeliads) are in clay pots which pass water vapor (rather than plastic pots) creating additional humidification of the surroundings. The plants create their own humidity through transpiration. The house is heated (when needed) with a humidifier built into the forced air furnace system. Common sense helps distribute water vapor within the house. As other readers noted, circulating air is helpful. The timing of showers, clothes and dish washing throughout the day/evening will add humidity. And, of course, a house that doesn't leak "good" air! These efforts provide a comfortable atmosphere for me. I need humidity as a medical necessity. I have learned to maximize opportunities for an overall cumulative effect. I always look for more ways to conserve or add humidity I am not an expert on humidity in the home. I practice "common sense". Also, I'm sure my that my location helps. I wouldn't tolerate the North or a desert. --Stitz in Maryland, USA
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