A very large number of appliances and motorized equipment that we use utilize electric motors. Some are very tiny and they run small appliances and consumer products like 3D Printers and grinders. Most of these are induction type motors that may have some form of speed controller or are just on/off motors. And, many of them are designed for single voltage use, meaning they are either 120 volt 60 Hz or 240 volt 50 Hz ( like those in Europe ). 

In 1998 General Electric developed a new motor that incorporated a magnetic drive system as opposed to a copper wound motor. These new motors could run forwards or backwards and would operate on 120/240 Volt 50/60 Hz current. First, this allowed them to be used any country in the world and secondly opened the door for development of a wide variety of new devices for many equipment manufacturers. 

In addition to being able to run in both directions, they could be controlled to run at increments of 1% to 100% in 1% increments making them extremely viable for applications where finite speed control was required. In addition, these motors can now be programmed to speed up or slow down based upon the performance requirements of the equipment. For example, if the motors are being used on systems that require different speed profiles for various performance requirements. These new motors can now also be operated by using a App on your phone so they can be controlled from any distance as long as there is wifi available. 

Pure Air Systems, an Indiana based corporation, has been using these new motors in their HEPA based, fan powered air filtration systems since 1999. PAS was one of the first companies to incorporate these motors into their systems replacing the standard induction motors. The new motors provided an entry into the European market and created an entirely new market for these air filtration systems. They could now be used both attached to existing HVAC systems with the ability to match the airflow requirements and also as stand-alone units where air filtration was needed in non-conditioned space.

For more information on our product line please go to our website at: http://www.pureairsystems.com   

Interior view of 2000. HS HEPA unit

Post Tags: air filtration systems airborne allergens allergies constant speed motors HEPA Filters Pure Air Systems variable speed motor ventilation whole house air filtration

Post Comments

About the Author: Don Musilli

My name is Don Musilli. I started Pure Air Systems in 1985 and then sold it in 2006. I continue to consult for PAS and write their blog and control their Twitter account. I also, on occasion, make changes to the website. The company is now almost 26 years old and has been a major player in offering commercial grade, high performance HEPA and Carbon based filtration systems for the commercial, institutional, industrial and residential markets.

I currently reside in Englewood, Florida where I write blogs and do social media marketing for a number of clients.

Stay In The Loop

Don't miss out! Like us on Facebook, Follow us on Twitter or subscribe to our RSS Feed and get our latest posts.