Modern Day is the premier manufacturer of high-end central vacuums. They are designed, manufactured and supported from their facilities in Bakersfield, California. A family company, Modern Day is one of the best in the business when it comes to support and customer service which is important, particularly if you inherit a central vacuum when you purchase a home.
If you are replacing an old central vac unit, Modern Day's Air-Master units are designed to replace obsolete Electrolux and Nutone units and offer a significantly improved cleaning capability. If you are building a home, consider their game changing Silent-Master series. These vacuums are almost unbelievable power, made out of heavy gauge steel, huge dust capacity and a 12 year transferrable warranty! You won't find anything close to that from any other manufacturer. In addition to all this, these units run at 62 db, which is about as loud as a conversation or window air conditioner!
If you have a central vac or want to install one, you own it to yourself to look at Modern Day for quality and ease of ownership.