As a general rule, you basement should keep a relative humidity level of 30 to 50 percent. Not only does this range reduce the risk of harmful bacterial growth, it. Relative Humidity What Humidity Should I Set My Dehumidifier To. Hygrometer Crawl Space Humidity Level JES Discusses Crawl Space. Fixit: What is the ideal winter indoor humidity level? com Aug 11, 2019Set it right to protect your basement air quality. Mold tends to be a problem at humidity levels above 60. Youll want to be sure to keep your basement dehumidifier at 60 or less at a minimum. Ideally, however, the best setting is around 50 or so. Set yours to that and observe how long it runs before making an adjustment. Atmospheric Pressure Dew Point My suggestion keep your basement sealed, run humidifier 5560 RH in humid summer 6065 RF when dryercooler. No need to run in winter if temp around 4565temp. In winter, a heated finished basement should dry out considerably and naturally fall below 50 percent relative humidity as long as you keep the heat at 65 degrees Fahrenheit or greater. If the outdoor temperature is exceptionally cold, such as below 0 degrees Fahrenheit, aim for even lower than the 30 to 50 percent range. Fixit: What is the ideal winter indoor humidity level. To prevent the growth of mold, and all the associated health problems, the humidity in your home must stay below 50 percent humidity. A good dehumidifier should shut off automatically when the humidity in the room drops below the amount you selected. Sep 09, 2009It brings the humidity down to 43 in the basement. That doesn't seem enough to me. What should I keep the humidity level at in my basement? We store important documents, etc. and are concerned with damage from moisture, mildew etc. Would a higher rated show more My dehumidifier is rated at 30 pints per day. Aug 20, 2019Maybe its time to check the humidity levels in your basement. Humidity refers to the amount of moisture in the air. When air has absorbed all the moisture that it can, we say that humidity is at 100. When the humidity level is at say half of that, it is defined as being at 50. Sep 18, 2011Closing basement windows when the relative humidity outside is over 50 or 60 percent will prevent humid air from entering your house, and prevent condensation from forming. This is especially important in the warmer spring and summer months. Nov 17, 2014The actual humidity is about 68 by my super duper humidity thing. It should have a rubber ring or similar gasket around it. If this is in poor condition, it's a cheap fix. If you live near water such as myself, most of your humidity is coming. Water Vapor When High Humidity in Your Basement is a Problem For a dehumidifier to do you any good, the temperature in your basement should ideally remain above 60 degrees Fahrenheit. Some dehumidifiers are specially designed to work in much colder temperatures, as low as 42 degrees, but extremely cold temperatures tend to result in lower humidity anyway, thus negating your need for a dehumidifier. What Humidity Should I Set My Dehumidifier To?