Is there a silent aircon or auxilliary fan blades? I noticed kasi na medyo maingay siya ... hindi naman metallic ang sound, I think it's just the air moving through the blades that makes the noise... just like that of an electric fan. Kaya I ask this kasi I noticed that some electric fans are very silent. Is it in the design of the fan blades? Baka may mabibilan ng mga silent fan blades na 'to? :-)

At kung wala man ... I think mukhang magandang tingnan 'to as a field of research :-D hehe