A rated warrant officer with over 22, 23, 24, or 25 years of aviation service, will continue to receive the rate prescribed for officers with over 14 years of aviation service.
1 Open windows when outdoor humidity levels are low. 2  This lets in a fresh breeze that can help even out home humidity levels. 3  Keep the windows closed when the humidity level is higher than the ideal 30 to 45 percent.4  Keep a small weather station on hand to help you track outdoor conditions right where you live. Open windows when outdoor humidity levels are low. 2  This lets in a fresh breeze that can help even out home humidity levels. 3  Keep the windows closed when the humidity level is higher than the ideal 30 to 45 percent.
Ideal humidity levels. Humidity is the amount of water vapor in the air. The amount of humidity varies depending on the season, weather and where you live. Generally, humidity levels are higher in the summer and lower during winter months. Ideally, humidity in your home should be between 30 and 50 percent. Humidity that's too low or too high can cause problems. Low humidity can cause dry skin, irritate your nasal passages and throat, and make your eyes itchy.