Pressure: Up to 750 Pa

Flow Rate: 500 - 50,000 m³/h

Efficiency: Moderate (55-65%)

Noise: Relatively quiet operation

• ISO 5801 (Industrial fans - performance testing)
• AMCA 210 (Laboratory methods for fan testing)

• EU 327/2011 (Fan eco-design requirements)

Pressure: 750 - 2,500 Pa

Flow Rate: 1,000 - 100,000 m³/h

Efficiency: High (75-85%)

Features: Non-overloading characteristic

• ISO 5802 (Industrial fans - site testing)
• AMCA 300 (Reverberant room sound testing)

• EN ISO 12499 (Industrial fans - mechanical safety)

Pressure: Up to 3,500 Pa

Construction: Heavy-duty, wear-resistant

Applications: Dust extraction, pneumatic conveying

Materials: Mild steel, stainless steel, abrasion-resistant coatings

• ATEX 2014/34/EU (Explosion-proof versions)
• NFPA 91 (Exhaust systems for air conveying)

• ISO 21940 (Vibration testing)

Pressure: Up to 250 Pa

Flow Rate: High volume, low pressure

Efficiency: Low to moderate

Applications: Wall vents, attics, general exhaust

• ISO 13350 (Industrial fans - performance testing for axial fans)

• EN 12101-3 (Smoke and heat control fans)

Pressure: 250 - 1,500 Pa

Flow Rate: Medium to high

Installation: In-line duct mounting

Features: Compact design, direct/ belt drive

• SMACNA (Duct construction standards)
• ASHRAE Fundamentals (Duct design)

Pressure: 750 - 2,500 Pa

Efficiency: High (75-82%)

Features: Guide vanes for improved efficiency

Applications: Tunnel ventilation, industrial processes

• AMCA 230 (Air performance rating for air circulating fans)

• PIARC (World Road Association tunnel standards)

Weatherproof: IP54-IP66 ratings

Types: Centrifugal, axial, mixed flow

Features: Weather cap, bird guard, vibration isolation

• IEC 60529 (IP Code - ingress protection)

• FM/UL approvals for roof-mounted equipment

High Velocity: 25-35 m/s outlet velocity

Long Throw: 100-150m effective range

Applications: Road/rail tunnels, underground parking

Control: Variable speed, reversible operation

• NFPA 502 (Road tunnels, bridges, limited access highways)
• EU Directive 2004/54/EC (Tunnel safety)

• EN 12101-3 (Smoke control fans)

Certifications: ATEX, IECEx, UL HazLoc

Zones: Zone 1, 2, 21, 22

Construction: Spark-resistant materials, enhanced grounding

Temperature Class: T1-T6

• ATEX 2014/34/EU
• IEC 60079 Series (Explosive atmospheres)
• NFPA 70 Article 500 (Hazardous locations)

Diameter: 900-2400mm

Air Movement: 5,000-50,000 m³/h

Energy Efficiency: DC motor technology

Applications: Warehouses, sports halls, industrial spaces

• EU 327/2011 (Fan energy efficiency)

• EN 60335-2-80 (Household fans safety)

Types: Plate heat exchanger, rotary wheel, run-around coil

Efficiency: 60-90% sensible/ latent recovery

Applications: Building ventilation, industrial processes

Features: Frost protection, bypass control

• EN 308 (Heat exchangers - test procedures)
• ISO 5801 (Fan testing - includes HRUs)

• VDI 6022 (Hygiene requirements)

Types: Diffusers, grilles, registers, louvres

Materials: Steel, aluminum, plastic

Air Patterns: Linear, radial, swirl, variable

Noise Criteria: NC30-NC45 typical

• ASHRAE 129 (Measuring air change effectiveness)
• EN 12238 (Air terminal devices - aerodynamic testing)

• ISO 5135 (Acoustic testing of air terminal devices)

Types: Volume control, fire, smoke, backdraft

Actuation: Manual, motorized, pneumatic

Leakage Class: Class 1-4 per EN 1751

Applications: Air balancing, fire protection

• EN 1366-2 (Fire resistance tests for dampers)
• UL 555 (Fire dampers)

• EN 1751 (Aerodynamic testing of dampers)

Classes: G1-G4 (Coarse), M5-F9 (Fine), H10-H14 (HEPA)

Standards: EN 779, EN 1822, ISO 16890

Applications: General HVAC, cleanrooms, hospitals

Efficiency: 35-99.999% particle removal

• EN 779 (Particulate air filters for general ventilation)
• EN 1822 (HEPA and ULPA filters)
• ISO 16890 (Air filters for general ventilation)

Types: Circular, rectangular, splitter, dissipative

Attenuation: 10-40 dB per meter

Pressure Drop: Typically 10-50 Pa

Applications: Noise control in HVAC systems

• ISO 7235 (Laboratory measurement procedures for ducted silencers)

• ASHRAE HVAC Applications (Noise control guidelines)

Components: Hoods, grease filters, fire suppression, exhaust fans

Capture Velocity: 0.25-0.5 m/s at cooking surface

Fire Safety: Grease duct construction, fire dampers

Make-up Air: Balanced supply systems

• NFPA 96 (Ventilation control and fire protection)
• UL 710 (Exhaust hoods for commercial cooking)

• NSF/ANSI 2 (Food equipment)

Flow Rates: 15-100 l/s per fixture

Humidity Control: Humidity-sensing fans

Noise Levels: <30 dB(A) for residential

Installation: Ceiling, wall, inline mounting

• IAPMO UPC/ICC IPC (Plumbing codes)
• ASHRAE 62.2 (Residential ventilation)

• ENERGY STAR for ventilation fans

Ventilation Rate: 6-10 ACH typical

CO Monitoring: Required by codes

Jet Fan Systems: For larger parking areas

Fire Mode: Smoke extraction capability

• NFPA 88A (Parking structures)
• EN 12101-3 (Smoke and heat control systems)

• OSHA PEL (Permissible exposure limits)

Capture Hoods: Canopy, booth, receptor, enclosing

Duct Velocity: 10-25 m/s for particulates

Air Cleaning: Bag filters, scrubbers, electrostatic precipitators

Applications: Welding, grinding, chemical processes

• ACGIH Industrial Ventilation Manual
• OSHA 29 CFR 1910 (Occupational safety)

• NFPA 654 (Prevention of fire/dust explosions)