<HTML><HEAD> <META charset=US-ASCII http-equiv=Content-Type content="text/html; charset=US-ASCII"> <META content="MSHTML 6.00.2800.1106" name=GENERATOR></HEAD> <BODY style="FONT-SIZE: 12pt; FONT-FAMILY: Arial; BACKGROUND-COLOR: #ffffff"> <DIV>In a message dated 3/27/2006 8:36:54 AM Pacific Standard Time, KeyKat88@aol.com writes:</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"> <DIV><FONT face=Arial size=2>      What is the difference between relatrive humidity and ambient humidity? Am I even asking the right question? Perhaps I just want to know what relative humidity means.</FONT></DIV></BLOCKQUOTE> <DIV><FONT face="Bookman Old Style">Relative humidity is the amount of water vapor in the air, versus the amount it can hold, at a given temperature. If the temperature is, say, 70 degrees, and the air is holding all the moisture it possibly can, the RH is 100 percent. Since warm air holds more water than cold air, if the temperature then rises, the RH would go down, since the warmer air would be capable of holding more water.</FONT></DIV> <DIV><FONT face="Bookman Old Style"></FONT> </DIV> <DIV><FONT face="Bookman Old Style">Ambient humidity is just the relative humidity at a particular location, like in the living room where the piano sits.</FONT></DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>         Also, what is the optimal humidity and temperature conditions for pianos?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV></BLOCKQUOTE> <DIV><FONT face="Bookman Old Style">1. Moderate and 2. Steady. </FONT></DIV> <DIV><FONT face="Bookman Old Style"></FONT> </DIV> <DIV><FONT face="Bookman Old Style">Bob Davis</FONT></DIV></BODY></HTML>