How It Works

DuroDust™ is the mobile dust collection system with non-vented, non-ducted, industrial dust collection technology. From silica dust to hexavalent chromium, it’s the safe, clean air solution for stone cutting, welding, sanding, grinding, painting, and coating preparation.

For a complete clean air solution, pair DuroDust with:


Key Features

  • Negative pressure: Pulls all particulate to the filtration system
  • Meets/Exceeds CFM Requirements: Engineered airflow requirements from 13,500 CFM to 120,000 CFM and beyond, to achieve airflow from 50 FPM to over 150 FPM through the enclosure and ensure dust/smoke will not escape.
  • Advanced filtration system: Designed with 4 stages of highly-efficient filtration captures all particulate to 1 micron and 99.7% of particulate to 0.3 micron.
  • Exceeds NESHAP 319: Captures 100% of Hexavalent Chromium particles generated during surface preparation processes.
    • First stage: Mesh pre-filter
    • Second stage 3 ply particulate
    • Third stage is 3 ply finer particulate
    • Fourth stage is a NESHAP 319, MERV 15, MERV 16 or HEPA filter, depending upon requirements
  • Easy Assembly: Nut and bolt panel assembly, easy panel on off speed dial, option for a lockable fused disconnect and C/UL/US Listed with a pre-wired control panel.
  • Taper Draft Airflow Technology: Directs air down the center of the enclosure to send particulates to filter banks creating a regulated area.
  • Variable Frequency Drive: Energy-efficient VFD with adjustable air speeds, doubles as a soft starter to eliminate the need for a motor starter.
  • Non vented returns air to the building

Technical Specifications

  • 13,500 – 200,000 CFM design range
  • VFD with stop-start speed pot dial controller
  • 99+% of particulate containment to 1.0 micron and 99.7% of particulate to 0.3 micron
  • Easy controller with start-stop variable speed dial
  • Customized four-stage filtration meeting NESHAP 319 and higher
  • Front loading all filter stages
  • Differential pressure gauge indicator
  • Hot work packages are available; spark arrestors for grinding and welding
  • Option: Portable on casters

For other technical information, download our DuroDust fact sheet!


DuroDust™ ISO 14644-1 Classifications

All classifications are in accordance with U.S. Federal Standard 209E and represent concentrations of particles using reference size of 0.5 micron:

Code Compliance Code Description
OHSA O.Reg 851-63 ignition or explosive
OHSA O.Reg 851-65 dust – ignition or explosive
NESHAP National Emission Standards for Hazardous Air Pollutants
UL U.S. and Canada
ISO cleanroom compliant up to Class 1000/ISO6 (ISO class clean room typically measures micron sizes 5.0µ, 0.5µ and 0.3µ)