Once Through Ventilation

At GHC – MEP Engineering Solutions, we provide specialized Once Through Ventilation (OTV) system design for facilities where air quality, safety, and contamination control are critical. In OTV systems, supply air passes through the space only once before being exhausted, making it an ideal solution for environments requiring high dilution rates, strict contamination removal, and reliable hazard control.

Our engineering team designs OTV systems that ensure continuous delivery of clean, conditioned air while efficiently removing airborne contaminants, chemicals, odors, pathogens, and particulate matter. These systems are widely used in laboratories, cleanrooms, hazardous material storage, pharmaceutical production zones, and high-risk industrial spaces.
Key Features of Our Once Through Ventilation Solutions

• High Fresh-Air Supply:
  100% outdoor air design ensures optimal dilution of contaminants and high indoor air quality.

• Customized Airflow Strategies:
  Engineered airflow patterns tailored to hazard profiles, occupancy, and process requirements.

• Precise Environmental Control:
  Integration with heating, cooling, and filtration systems to maintain temperature, humidity, and cleanliness standards.

• Advanced Filtration & Exhaust:
  HEPA, ULPA, and specialized chemical filtration available to remove hazardous particles and fumes.

• Energy Optimization:
  Incorporation of heat recovery systems, demand control strategies, and efficient equipment selections to reduce operational costs without compromising safety.

• Safety-Focused Design:
  Systems engineered to meet ventilation requirements set by ASHRAE, OSHA, NFPA, NABL, and industry-specific guidelines.

• Reliable Monitoring & Controls:
  Integration with BMS for real-time tracking of airflows, pressurization, and system performance.

Benefits to GHC Facilities

• Superior indoor air quality and contaminant removal

• Enhanced protection for personnel, equipment, and processes

• Reduced risk of cross-contamination and hazardous exposure

• Highly stable and predictable ventilation performance

• Compliance with environmental health and safety standards

• Reliable operation in critical and sensitive spaces

GHC’s expertise in OTV system design ensures your facility operates with maximum safety, efficiency, and environmental control. Whether for new construction or an upgrade to existing infrastructure, we deliver high-performance solutions tailored to your operational needs and regulatory demands.