Axial Flow Fan for Car Parking Ventilation — Manufacturer & Supplier
Vayuvents Pvt. Ltd. manufactures and supplies axial flow fans for car parking ventilation systems in residential complexes, commercial buildings, hospitals, airports, and shopping malls — ensuring safe CO concentration levels as required by the National Building Code of India.
Enclosed car parking areas accumulate carbon monoxide, nitrogen oxides, and hydrocarbon vapours from vehicle exhausts. The National Building Code of India requires minimum ventilation rates and mandates CO monitoring with automatic fan activation when CO levels exceed safe limits.
Axial flow fans are the standard solution for car parking ventilation because they deliver high airflow at low static pressure, are compact enough to fit within restricted floor-to-ceiling height of parking decks, and can be configured for jet-fan impulse ventilation or conventional supply-and-extract systems.
Vayuvents designs car parking ventilation systems to achieve the NBC-specified minimum ventilation rate of 6 air changes per hour for basement parks and 10 air changes per hour for enclosed multi-level parks.
How It Works in This Application
CO Accumulation Detection
CO sensors placed at vehicle exhaust height throughout the parking level detect rising carbon monoxide concentration from vehicle exhausts.
Fan Activation
When CO reaches the activation threshold, the ventilation fan system activates automatically to dilute and exhaust contaminated air.
Fresh Air Distribution
Axial supply fans or impulse jet fans drive fresh air from the intake end of the parking level toward the exhaust end.
CO Exhaust to Atmosphere
Exhaust axial fans extract contaminated air to atmosphere, maintaining CO levels below the 50 ppm NBC safe limit.
Recommended Variants
Jet Fan (Impulse Fan)
Duct-free jet fans suspended from the parking ceiling create longitudinal airflow that pushes contaminated air toward exhaust points without ductwork.
Most RecommendedTube Axial Exhaust Fan
Conventional axial fan in exhaust duct for smaller basement parks with simple linear airflow paths.
Wall-Mounted Axial Fan
External wall-mounted exhaust or supply fans for surface car parks and open-deck parking structures.
VFD-Controlled Axial Fan
Variable speed fan system controlled by CO sensor output for energy-efficient demand-controlled ventilation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Airflow Capacity | 5,000 to 50,000 m3/hr per fan |
| Air Changes per Hour | 6 to 10 per NBC requirements |
| Motor Power | 0.75 to 22 kW |
| Fan Diameter | 315 to 1,000 mm |
| Noise Level | 55 to 70 dB(A) at 3m |
| Motor Enclosure | IP55 TEFC |
| Standards | IS 4894, NBC Part 8 Section 3 |
Key Features
- Low-noise operation critical for residential and commercial building car parks with occupied spaces above
- IP55 motor enclosure protects against the humid condensation-prone car parking environment
- VFD-compatible motor winding for energy-saving demand-controlled ventilation with CO sensor
- Compact low-profile design fits within the restricted ceiling height of basement car parks
- Jet fan variants provide longitudinal airflow without ductwork, reducing installation cost
- Smoke extraction mode available in reversible fan models for emergency car park smoke management
- Anti-vibration mounts prevent structure-borne noise transmission to occupied spaces above
- Corrosion-resistant galvanised or epoxy-coated casing for the damp parking environment
Industries That Use This Application
Commercial Buildings
Office building basement and podium car parks in metros and tier-2 cities
Residential Complexes
Multi-storey society basement parking regulated by local fire authorities
Hospitals
Hospital basement car parks with 24/7 occupancy and strict air quality requirements
Airports
Terminal building and multi-level airport parking structures
Shopping Malls
Large-volume basement and multi-level mall parking with high vehicle turnover
Hotels
Hotel basement and podium car parks with demanding noise requirements
Transit Hubs
Bus and metro station parking with high traffic volume and CO loading
Industrial Campuses
Employee parking structures at large industrial and IT campuses
✓ Supply & Support: Vayuvents manufactures car parking ventilation axial fans at our Vasai, Mumbai works. We provide NBC-compliant ventilation design calculations and fan selection for new and existing car parks. Complete supply including fans, CO sensors, and control panels is available.
FAQs
The National Building Code of India Part 8 Section 3 requires a minimum of 6 air changes per hour for basement car parks, with mechanical ventilation maintaining CO concentration below 50 ppm at 900mm height above floor level.
A jet fan is a high-velocity low-diameter axial fan suspended from the parking ceiling that creates longitudinal airflow without requiring full-length supply and exhaust ductwork. Jet fans reduce the ceiling void required for ductwork, which is critical in basement car parks with limited floor-to-ceiling height.
Yes. Reversible jet fans and axial fans can operate in reverse mode for emergency smoke extraction in car park fires, as required by NBC fire safety provisions.
Car park fans are typically controlled by CO sensors placed at 900mm height throughout the parking level. The control panel monitors CO concentration and activates fans at low speed at 25 ppm, switches to high speed at 50 ppm, and triggers alarms at 100 ppm.
Car park fans should not exceed 65 to 70 dB(A) at the nearest occupied space boundary. For residential buildings, 55 to 60 dB(A) may be required to comply with local noise regulations.
Vayuvents primarily supplies fans, but we can provide complete ventilation system design including fan selection, CO sensor layout, control panel specification, and ductwork design as a turnkey supply package.
Contact Vayuvents at enquiry@vayuvents.com or call +91 90961 88703. Share your car park area, ceiling height, number of parking spaces, and any specific noise constraints. We will provide a ventilation design and quotation within 24 hours.
