The Mechanical Ventilation Guidelines, developed by the High-Rise and Public Building Projects Committee, outline standards for designing, operating, and maintaining air-conditioning and mechanical ventilation systems in high-rise and public buildings. These guidelines ensure optimal indoor air quality, energy efficiency, and safety compliance.

Contents Overview:

Basic Concepts

Differentiates natural and mechanical ventilation, emphasizing indoor air quality (IAQ).

Design Considerations

Outdoor air supply rates, isolation of Environmental Tobacco Smoke (ETS) areas, and compliance with ASHRAE standards.

Car Parks Ventilation

Guidelines for natural and mechanical ventilation, CO concentration limits, and emergency smoke purging systems.

Kitchen Exhaust Systems

Specifications for ventilation rates, exhaust ducts, and hood designs to ensure safe and efficient operation.

Bathrooms, Toilets, and Locker Rooms

Ventilation requirements for areas lacking natural ventilation.

Exit Staircases and Fire Safety Lobbies

Pressurization systems for smoke control and emergency evacuation.

Outdoor Air Intake

Placement and protection of intake systems to avoid contamination.

Duct Work Design, Fabrication, and Installation

Standards for air ducts, materials, sealing, and cleaning provisions.

Key Features:

Compliance with international standards like ASHRAE and BS EN codes.

Safety measures for fire resistance, pressurization, and smoke control.

Recommendations for energy efficiency and air quality improvement.

This guideline ensures the effective design and operation of Mechanical Ventilation systems, providing a safe and comfortable environment in compliance with modern standards.