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Waikiki Beach Marriott Resort & Spa, Honolulu, HI

eFlow-Constant Airflow Regulators Elevate Ventilation Standards in Waikiki Beach Marriott Resort & Spa’s Major Upgrade

Honolulu, Hawaii – The Waikiki Beach Marriott Resort & Spa, a cherished destination for travelers worldwide, has recently unveiled a significant component of its multi-million-dollar renovation project. This extensive transformation, which spans across the resort’s two majestic towers and encompasses all 1,310 guest rooms including 135 suites, has made a remarkable stride in enhancing guest comfort and environmental efficiency. A key feature of this upgrade is the installation of eFlow-Constant Airflow Regulators (CARs) in the resort’s ventilation systems.

Addressing the Challenge: Consistency in Airflow and Energy Efficiency

The resort previously grappled with the challenge of maintaining consistent airflow in its expansive guest accommodations. Fluctuating airflow can lead to guest discomfort, inefficient energy use, and increased operational costs – issues that are particularly significant in high-occupancy settings such as hotels.

Integrating the Solution: eFlow-Constant Airflow Regulators

In a move to tackle these challenges, National Property Consulting Group, LLC and the Waikiki Beach Marriott Resort & Spa worked closely with eFlow to equip each guest room’s exhaust system with 4-inch CARs, set to a standard 35 CFM. These CARs were installed on specially designed, custom-sized mounting plates, ensuring a perfect fit within the existing infrastructure.

The Benefits of Installing CARs:

Enhanced Air Quality and Comfort: 00maintain a constant airflow, adjusting automatically to pressure changes. This feature guarantees that guests enjoy a consistently comfortable environment, regardless of occupancy levels or external weather conditions.

Improved Energy Efficiency: By regulating and optimizing airflow, these CARs significantly reduce the resort’s energy consumption. This efficiency not only leads to lower utility bills but also aligns with global environmental sustainability goals.

Noise Reduction: A quieter environment is achieved as the CARs help maintain an optimal airflow, reducing the need for HVAC systems to operate at higher, noisier levels.

Simplified Maintenance: The installation includes custom-sized mounting plates, which allow for easy maintenance and ensure the longevity and effectiveness of the CARs.

Flexibility and Adaptability: Given the diverse room configurations at the Marriott Resort, the adaptable nature of the eFlow-CARs makes them an ideal solution for varied space requirements.

Leading the Way in Sustainable Hospitality

The installation of eFlow-Constant Airflow Regulators marks a significant step in the Waikiki Beach Marriott Resort & Spa’s commitment to sustainable, guest-centered hospitality. This initiative not only improves guest comfort but also reflects the resort’s dedication to reducing its environmental impact.

As the resort continues its transformation journey, the integration of advanced technologies like eFlow-CARs is setting new standards in eco-friendly luxury and guest satisfaction. The Marriott’s proactive approach in modernizing its ventilation system underscores its commitment to offering an unmatched guest experience while promoting environmental conservation.

About eFlow: eFlow, a leader in innovative airflow solutions, specializes in designing and supplying constant airflow regulators and related technologies for various building types.

About Waikiki Beach Marriott Resort & Spa: Located on the picturesque shores of Waikiki Beach, this resort is renowned for its luxurious accommodations, top-tier amenities, and the spirit of Aloha in its hospitality.


photo credit loopnet.com


Visit eflowusa.net for product information and pricing or email [email protected]



eFlow-CAR is a simple solution to balancing ventilation systems. Constant Airflow Regulator is a device that automatically regulates airflows in ventilation systems to constant levels. The passive control element responds to duct pressure, and requires no electric sensors, pneumatic sensors or controls. eFlow-CARspromote high indoor air quality and energy savings.

  • UL 2043 Classified
  • Composed of fire resistant UL 94 ABS plastic
  • Diameters offered: 3”, 4″, 5”, 6”, 8″, 10″
  • Operating Pressure Range: 0.08 to 2.4 in w.g. (20-600Pa)
  • Airflow settings: 15-765 CFM
  • Temperature Limits: -22° to 140°F (-30° to 60°C)
  • Suitable for both supply and exhaust applications
  • No external power supply needed
  • Field Adjustable CFM set point
  • Capable of maintaining constant airflow within +- 5% for nominal airflow throughout the target operating pressure range of 0.08 to 2.4 in.
  • Standard for Energy Efficient Compliance




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