DuroPure™ Non-Vented Filtration | Industrial Air Purification
DuroPure™ is the world’s first, indoor air filtration system that goes beyond OSHA compliance to capture 99+% of airborne particulates like hexavalent chromium, VOCs, and isocyanates, and recirculates clean air back into the workspace. With built-in casters and no ducting required, it moves easily with your workflows and is plug and play or deployable.
Pair it with:
- DuroRoom™ to create a clean air envelope around workpieces for a contaminant free retractable work station.
Key Features
Patented Six-Stage Filtration:
Multi-stage particulate collection and multi-stage gas collection with carbon adsorption and UV PCO (photocatalytic oxidation) technology
Taper Draft Airflow Technology:
For maximum velocity around products painted in DuroRoom enclosure and minimized accidental overspray and enclosure wall residue
Meets/Exceeds CFM Requirements:
Engineered per airflow requirements from 13,500 CFM to 200,000 CFM and beyond, to achieve airflow over 100 FPM at the intake filter face and ensure airflow remains below code requirements of 25% of the LEL (lower explosion limit)
Safety Features Production:
Air interlocked fans with fresh breathing line supplied
Exhaust System:
Creates a negative-pressure vacuum seal to contain particulates and chemical contaminants
Fans:
Non-sparking, reverse incline fan wheels, in sizes 18” to 35”, 5hp to 25hp motors dependent on airflow requirements, with 3.5” static pressure
Optional LEL Monitor:
If LEL monitor reaches “set point” the air solenoid is shut down to ensure no more VOCs are produced
VOC Monitor:
VOC C-21, solid-state gas monitor capable of sensing a variety of gases and vapors (C-21 is for solvent vapors, etc.) and the system shuts down spray gun if the VOC monitor is triggered
Fire Suppression:
Designed by Kidde Badger for protection of exhaust systems and the enclosure, meets NFPA 17 standards and UL listed
Defense Centers for Public Health – Aberdeen (DCPH-A) tested and verified by Army Engineers and Industrial Hygienists:
The DuroPure system mitigates exposure to hexavalent chromium, isocyanates and VOCs, meeting HQDA’s mandate
Technical Specifications
- Recirculating, non-vented solution.
- Patented, Six-stage filtration.
- Three (3) stages of particulate collection; captures paint particulate including hexavalent chromium and particulate isocyanates. Final filter exceeds NESHAP 319 Three (3) stage gas filtration, captures isocyanates in gas stage and destroys VOCs.
- Two (2) stages of activated carbon filtration. Over 70lbs of carbon for every 2000 CFM.
- UV light with PCO (photocatalytic oxidation). Converts organic pollutants into the carbon dioxide & water.
- No ducting or makeup air required.
- Plug and Play and can be generator ready.
- Robust CFM to meet airflow requirements @ 100 FPM, less than 25% LEL is maintained.DCPH-A tested, confirmed and verified.
- System is monitored. VOC monitor will shut down system if ACGIH limits are surpassed.
For ISO classifications and other technical information, download our DuroPure fact sheet!
DuroPure™ 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 |
| NFPA 33 | spray application |
| ANSI Z9.7 | as per the requirements of NFPA33 Chapter 7.5.2. |
| NFPA 17 | dry chemical extinguishing systems |
| NFPA 701 | fabric - flame resistance |
| OSHA 29CFR - 1910.107 | spray finishing |
| OSHA 29CFR - 1910.94 | ventilation |
| OHSA O.Reg 851-63 | ignition or explosive |
| OHSA O.Reg 851-65 | dust - ignition or explosive |
| OHSA O.Reg 213.5.12 | fire code - spray operation |
| EPA 40CFR - Part 63.11173 | spray finishing requirements - Electrical CSA Certified |
| OSHA silica | standard for general industry |
Precision-Engineered for Your Application
Our products are customized to meet your exact needs and specifications ensuring both a safe and productive work environment.