QuietCool Whole House Fans are made in the USA.  They will help you cut your electricity bill by 50-90%.  It is the most efficient and quiet whole house fan system. 

The Steath product line is available in 3 sizes:

• 1.5 - Bedrooms
• 2.5 - Large Rooms
• 3.3 - Common Areas

The Steath product also features an AC/DC Brushless motor to achieve efficiency quietly.