A prefix is a word part added to the  beginning of a word to create a new word with a different  meaning.    Examples: refill, undo,  incomplete, precooked   â¦  (Letters added to the end of a root or word are a suffix.). + 213 others found this useful. Caroline Russell.
Its not uncommon to have above 90% relative humidity readings. I find it uncomfortable once the humidity is over 70%, but I'm really not a 'good' test subject as I have lived in Florida all my life and have gotten use to high humidities. I can tell you one thing with certainity, the insects love the high readings! 60% is a threshold in the summer.
The weather outside is not something that you can control, but the good thing is that you are able to control the humidity level in your bedroom or the entire house with a humidifier. For a healthy reasons humidity level should range between 30 and 50 percent. As an optimal humidity level for a bedroom is considered 45 to 50 percent. If you sleep in an area with a level lower than the recommended one, you may experience, irritation of the eyes, nose, and throat.