The BlowBeast Negative Air Machine is a portable air duct cleaning solution by Rotobrush.

Most negative air systems are bulky, big and take up a lot of truck space, which was the reason Rotobrush wanted a solution for portability in the negative air industry as well.

“We know contractors are searching for equipment that makes it easier for them to perform air duct cleaning,” says Bob Elledge, president and CEO of Rotobrush International. “The BlowBeast is easy to maneuver without losing the power needed to effectively remove airborne dust and pollutants from any air duct system.”

Negative air machines are ideal for situations where a traditional brush and vacuum won’t be as effective. The BlowBeast provides superior airflow and high vacuum capabilities to remove contaminants and improve indoor air quality. With a removable pod for collecting the contaminants, contractors will also have an easier time getting their machine ready for the next job site.

BlowBeast features:

  • Compact and portable design
  • Innovative removable pod
  • Heavy-duty, durable carrier

BlowBeast specifications include:

  • Air Flow: 2700 CFM free air (2100 with HEPA filtration)
  • Dimensions: 42” long x 23” wide x 45” high
  • Pod dimensions: 35” long x 18.5” wide x 36” high
  • Total weight: 145 lbs.
  • Pod weight: 96 lbs.
  • Carrier weight: 49 lbs.


  • 1st stage – polyester collection bag
  • 2nd stage – 99.97% HEPA filtration

For more information on the BlowBeast, visit or call 800-535-3878.