Fan filter units are stand alone units with integrated hepa filter fan and control system.
Fan powered hepa filter.
Fan powered hepa filters self powered air filter modules have become a popular substitute for terminal air filtration units because of their flexibility and ease of installation.
Air circulation is maintained by using a lightweight forward curved fan powered by a 120v or 277v 60hz motor.
They supply purified air to cleanrooms and laboratories within the life science food and beverage and microelectronic industries by removing harmful airborne particles from recirculating air.
The second is the hepa filter which honeywell suggests changing once a year.
Our standard fan powered hepas microsound ncr units include variable speed control choice of power cord or junction box.
The helmet filters air with fans and hepa filters with four hours of battery life.
If you want cleaner air in a fairly small room honeywell s dh hpa060 is the right choice.