Ventilation System Design Services
STP ventilation, basement jet-fan systems, and staircase pressurisation designed to NBC and fire safety code standards.
Professional Ventilation System Design Solutions
Ventilation is a mandatory requirement for building safety, air quality, and occupant health, and it must meet NBC, NBC fire provisions, and local authority requirements. Yasmin Airconditioning Pvt.Ltd. provides specialised ventilation design for basement car parks, STP rooms, electrical rooms, staircase pressurisation, and mechanical supply/exhaust systems in commercial and residential buildings.
Our ventilation engineers calculate air change rates, jet-fan throw distances, make-up air requirements, and staircase pressurisation levels in accordance with NBC Part 8 and IS 3103. Each design is backed by detailed airflow calculation reports and coordinated layout drawings that support regulatory submissions.
From a simple toilet extract system to a complex underground car park jet-fan ventilation scheme with CO detection and fire mode dampers, Yasmin Airconditioning Pvt.Ltd. delivers ventilation designs that satisfy fire consultants, local authorities, and facility operators.
What's Included in Our Ventilation Design Service
Air Change Rate Calculation
Space-by-space ventilation rate calculations based on occupancy, NBC requirements, and local authority norms.
Basement Jet-Fan Design
Jet-fan throw and ventilation effectiveness analysis for underground car parks per NBC and NFPA guidance.
Staircase Pressurisation
Calculation of pressurisation airflow to maintain positive pressure in fire escape staircases per NBC fire provisions.
Ductwork Layout
Supply, return, and exhaust duct layout drawings coordinated with structural and fire suppression systems.
STP & Utility Ventilation
Dedicated ventilation systems for STP rooms, diesel generator rooms, electrical rooms, and pump rooms.
Regulatory Submission Drawings
Drawings and calculations prepared in the format required by Mumbai fire department and local authority approval.
Benefits of Professional Ventilation Design
The right HVAC engineering partner delivers measurable improvements across every dimension of your project, from construction efficiency to long-term operational cost.
Fire Code Compliance
Designs meeting NBC fire provisions satisfy fire NOC requirements and reduce risk of project delays at approval stage.
Occupant Health
Correct outdoor air delivery maintains CO₂ levels and indoor air quality, supporting productive working environments.
Basement Safety
Properly designed jet-fan systems clear vehicle exhaust gases and smoke, protecting basement occupants and vehicles.
Energy Optimisation
Variable speed fans with CO sensors reduce ventilation energy in basements during low-occupancy periods.
Regulatory Clearance
Submission-ready drawings and calculations accelerate fire NOC and BMC approvals.
Life Safety Assurance
Staircase pressurisation systems protect evacuation routes during fire events, meeting building life safety requirements.
Trusted across sectors in Mumbai
The Yasmin Airconditioning Pvt.Ltd. advantage
30+ Years Experience
Three decades of HVAC engineering across Mumbai's most demanding commercial and residential projects.
In-House Engineering Team
Our own design and execution team, with no outsourcing of critical engineering decisions to third parties.
Authorised Brand Partner
Authorised dealer for Daikin, Mitsubishi Electric, and Kruger, supplying genuine equipment with full factory warranty.
End-to-End Service
Design, supply, installation, commissioning, and AMC delivered by one accountable team.
Pan-Mumbai Reach
Four service hubs across Mumbai ensuring rapid response and site coverage wherever you need us.
Energy-First Approach
Every system we design targets BEE 3-star and above, saving energy and reducing your operational costs.
Frequently asked questions
What is staircase pressurisation in HVAC?
Staircase pressurisation is the supply of outside air to a fire escape staircase to maintain a positive pressure differential relative to adjacent floors. This prevents smoke from entering the staircase during a fire, protecting occupants during evacuation.
How many air changes per hour are required for a basement car park?
NBC Part 8 and NFPA 88A recommend a minimum of 6 air changes per hour for enclosed car parks in normal mode, with provision for 10–12 ACH in fire/purge mode. The actual requirement depends on car park volume, occupancy, and the presence of CO detection.
What is a jet-fan ventilation system?
Jet fans are axial fans mounted at high level in basement car parks. They create longitudinal airflow by inducing the surrounding air mass, distributing fresh air and exhaust gases without the need for extensive ductwork. They are controlled by CO sensors for energy efficiency.
Is mechanical ventilation mandatory for STP rooms?
Yes. STP rooms, diesel generator rooms, electrical switch rooms, and battery rooms all require dedicated mechanical ventilation as per NBC and OEM requirements. Failure to provide adequate ventilation creates safety and equipment reliability risks.
Do you design fresh air systems for offices?
Yes. We design dedicated outdoor air systems (DOAS), energy recovery ventilators (ERV), and AHU-integrated fresh air systems for commercial offices to meet ASHRAE 62.1 and IGBC fresh air requirements.
Can you redesign an existing ventilation system that is underperforming?
Yes. We conduct airflow measurement, compare against design intent, identify deficiencies, and produce a remedial design. This often involves fan replacement, balancing damper adjustment, or supplementary duct additions.
Discuss your ventilation design requirement
Share your requirement and our engineering desk will respond with a system recommendation and a costed estimate at no obligation.