Heat-recovery ventilation unit 390 620

with integrated filtration

Overview
Energy-efficient hall ventilation system using layer ventilation to control welding fumes in production halls. Minimal air turbulence, high filtration efficiency (≥99.9%), recirculation of cleaned air, and easy retrofit without ductwork.

Applications

• Workshops where local extraction at source is not possible
• Complementary to point-extraction systems
• Environments with changing dust/smoke sources
• Workstations, production halls, logistics and storage halls

Operation and principle
The CleanAirTower protects personnel and equipment from fine dust generated during welding. Cleaned air is returned to the workspace. Optimized airflow directs sparks and particles to multiple impact points (pinball principle), extracting their energy and reducing airborne spread. The system operates on the layer ventilation principle recommended by occupational safety authorities.

Economy and operation
Efficient ventilation with simple control and flexible operation: low foreign-object hazard, effective energy extraction from sparks/particles, tornado principle for high separation efficiency, heating cost reduction through air recirculation, long filter service life, contamination-free dust disposal, cost-effective retrofit (no ductwork needed), upgradeable head element, safe transport and installation via lifting eyes, uninterrupted operation thanks to automatic dust discharge into collection buckets.

Technical data (excerpt)
Weight (kg): 666
Height (mm): 3617
Diameter (Ø mm): 1004
Connection diameter (mm): 1172
Dust collector volume (L): 10
Filter stages: 1
Filter area (single) (m²): 20
Number of filter elements: 3
Total filter area (m²): 60
Separation efficiency ≥ (%): 99.9
Motor power (kW): 5.5
Rated current (A): 11
Sound pressure level (dB(A)): 72
Compressed air supply (bar): 5-6
Max. fan capacity (m³/h): 10800
Extraction capacity (m³/h): 6000
Min. negative pressure (Pa): 2300

Characteristics / technical specifications

• Model: CleanAirTower
• Filter efficiency: separation ≥ 99.9%
• Total filter area: 60 m² (3 elements × 20 m²)
• Max. fan capacity: 10,800 m³/h; extraction capacity: 6,000 m³/h
• Motor power: 5.5 kW (rated current 11 A)
• Sound pressure level: 72 dB(A)
• Weight: 666 kg; Height: 3,617 mm; Diameter: 1,004 mm
• Dust collector volume: 10 L; compressed air supply: 5–6 bar