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.
Keeping the correct humidity level in your home is important to your well-being, and while a little moisture can be beneficial, too much could be hazardous to your health. Recommended Relative Humidity Level: The recommended average relative humidity level is between 35% and 45%.f you need to add humidity to your home and you only have one portable humidifier, I would locate it in the bedroom to control the air where you spend the most time in a 24 hour period. However, I must stress that the humidifier should be sized right for the room.