265 Cherry Street, NYC

eFlow-Constant Airflow Regulators (CAR’s) were successfully installed at 265 Cherry Street, NYC.

Overseen by En-Power Group, ventilation upgrades at 265 Cherry Street were a huge success!
Driven by a New York incentive program to promote energy savings and High Indoor Air Quality, eFlow-Constant Airflow Regulators (CAR’s)  (a non-electrical powered devices) were installed at 265 cherry street, NYC.  As a result, this large-scale multifamily residence (250 apartments) now has improved Indoor Air Quality, Automatic Airflow Balance and Energy Savings for years to come!
With energy costs soaring, multifamily residences are in need of highly effective ways to conserve energy and save money. By installing eFlow-Constant Airflow Regulators (CAR), owners can count on accurate and automatically controlled airflow in their buildings.  Automatic air balancing not only improves the Indoor Air Quality, It also allows for cost savings by reducing the load on facilities’ heating and cooling systems. Constant Airflow Regulatorsare inexpensive (comparable to traditional balancing), require no power to operate, and are easy to install.

Some properties are seeing complete return on investment in less than six months. Having automatic airflow regulation is an easy way to ensure building code ventilation requirements are met, Indoor Air Quality is improved and energy savings are effectively realized.

Visit eFlowUSA.net for more information and to place your order on-line.

West 245 West 99th Street, NYC

Classic Stack Effect issue at 245 West 99th Street, NYC-corrected by installing eFlow Constant Airflow Regulators!

Built in 2008, Ariel West at 245 West 99th street features 32 stories and 90 superbly designed two to five bedroom units. This extraordinary glass tower offers a sensual blend of lavish materials, gracious interior detailing, modern technology and an astounding array of family amenities.

Problem:Classic High-Rise building Stack Effect and air balancing issue

Residence of Ariel West experienced extremely uncomfortable conditions in common hallways throughout the entire building.

During the winter months, the upper floors common hallways would get unbearably hot, while the lower floors got extremely cold. This was the results of classic stack effect.

In modern high-rise building with well-sealed envelopes, the stack effect can create significant pressure differences.  Such pressure differences can cause significant air imbalance resulting in colder temperatures in upper floors and warmer temperatures in lower floors during the summer months and the reverse during the winter months.

Solution: eFlow-Constant Airflow Regulators (CAR’s) were installed to Automatically Balance Airflow.
eFlow-CARs correct stack effect. These devices compensate for changes in duct pressure caused by thermal stack effect and building pressure. Tall building ventilation systems become severely out of balance due to fluctuations in environmental conditions. Too much air is drawn from some floors, while other floors don’t receive enough ventilation. eFlow-Constant Airflow Regulators can correct stack effect by automatically adjusting to the changes in static pressure so that energy is not wasted and optimum indoor air quality is maintained. The eFlow-CAR also provides a low-cost solution to balancing forced-air systems for heating, air conditioning and ventilation, eliminating the need for on-site balancing.
Visit eFlowUSA.netfor more information and to place your order on-line.

eFlow USA launches!


Affordable Products Available Through Easy One-Step Ordering at eFlowUSA.net

eFlow USA
has unveiled its all-new website, eFlowUSA.net, providing the only economical, efficient, and easy way to purchase Constant Airflow Regulators for delivery throughout the United States, Canada and Worldwide shipping.

With energy consumption and costs rising rapidly, the Heating and Ventilation (HVAC) Industry is constantly looking for innovative ways to increase energy efficiency and reduce cost. eFlow USA’s state-of-the-art Constant Airflow Regulator products provide the most effective solution on the market at the lowest price.

eFlow USA’s Constant Airflow Regulators ensure commercial and residential buildings have efficient heating and ventilation systems that meet the latest mechanical code requirement by providing automatic air balancing and optimized airflow distribution for better indoor air quality (IAQ). These regulators help save both energy and money by allowing only the required amount of air into a given space. They also help ensure a constant, regulated airflow and minimize stack effect, essential to reducing energy consumption when heating large or small spaces.

In addition to the cost benefits, eFlow USA products may also contribute toward attaining a USGBC LEED sustainability certification. Constant Airflow Regulation also ensures good IAQ in public buildings such as hospitals, hotels, and offices.

What is a Constant Airflow Regulator?
A Constant Airflow Regulator is a device placed inside the duct in order to limit the amount of airflow into or out of a given space ensuring that the space is not over-ventilated or over-served.

The regulator is used mainly in ventilation and air conditioning systems to adjust the volume of either supply or return air.

About eFlow USA
eFlow USA provides reliable, simple, and easy-to-install Constant Airflow Regulators. Unique to eFlow USA, our products do not require expensive air duct sensors and there is no need to provide a connection to electrical power outlets. Our products are fully adjustable to allow users to select the flow required in each area of the building. Adjustments are simple, requiring no special tools.

In fact, adjustment can be made with a standard screwdriver. Typically, there is no ongoing maintenance required under normal day-to-day use and normal conditions.

Despite their simplicity, eFlow Constant Airflow Regulators have a big improvement and return on investment (ROI) impact on the contact regulation of airflow in a building.

Product Details
eFlow USA Constant Airflow Regulators have a precision molded body which carries a UL classification. Factory calibration ensures our Constant Airflow Regulators are high-quality and provide the most efficient service. A sealed tight-raised gasket for insertion into round duct or flat rubber gasket for connection to adapter plate and soft pliable edge seals ensures the best possible connection with air systems.

eFlow USA Constant Airflow Regulators are also bi-directional, meaning the valve can be flipped to change from exhaust to supply.

eFlow USA Constant Airflow Regulators cover wide range airflow from 10 to 500-cubic-feet per minute (CFM) and offers Pressure Operating Range of 0.08” WC (20 Pa) to 2.4” WC (600 Pa).

Our regulators are available in various diameter sizes — including the smallest size on the market today. Our 3-inch regulator is available with a special casing for easy access. Regulators in 4”,5”,6”,8”,10” (or 80mm to 250mm) sizes are also available.

Why choose eFlow USA?
Our prices are unbeatable, our online ordering process is easy, and delivery is fast. Further, all eFlow USA products come with a 6-year warranty — our products offer the most reliable solution at the best price!

To order or for more information, visit eflowshop.net or call 1-833-FLOW-USA (1-833-356-9872).


211 Madison Avenue , NYC

Years of musty odors and poor indoor air quality at Morgan Court, NYC resolved by installing eFlow-Constant Airflow Regulators!

Morgan Court at 211 Madison Avenue , NYC is a 32 story building that has been described as having been “designed and built as a staple of elegance, luxury and prestige”. With just two residences per floor, this 28 story building offers an enviable level of privacy. Unfortunately, the building had been plagued with issues related to a poorly designed ventilation system. Inadequate and unbalanced kitchen and bathroom exhausts led to musty odors and poor air quality with in the building for years. Many unsuccessful solutions were proposed and attempted in the past. That is until, eFlow-Constant Airflow Regulators were installed at all kitchen and bathroom exhausts. Post installation of eFlow CARs, the building was free of musty odors and benefitted from automatically balanced airflow. Thanks to eFlow CARs, the residence of Morgan Courts can look forward to better indoor air quality as well as energy savings for years to come.

eFlow CARs automatically regulate airflow in duct systems to constant levels. It requires no electricity, no sensors or controls. The CAR compensates for changes in duct pressure caused by thermal stack effect and provides a low-cost solution to balancing ventilation systems. CARs are  frequently specified for many different applications, including multi-family projects .

Visit eFlowUSA.net for more information and to place your order on-line.


The New York State Psychiatric Institute

Thanks to eFlow Constant Airflow Regulators, The New York State Psychiatric Institute in NYC, now meets the AAALAC’s (Association for Assessment and Accreditation of Laboratory Animal Care) strict Indoor Air Quality standards!

eFlow USA is proud to announce that eFlow-Constant Airflow Regulator’s (CAR’s) played a pivotal role in helping The New York State Psychiatric Institute, located at 1051 Riverside Drive in NYC, meet the AAALAC’s (Association for Assessment and Accreditation of Laboratory Animal Care) strict Indoor Air Quality standards. The AAALAC is an international organization that promotes the humane treatment of animals in science. In order to achieve accreditation from this organization, strict supply/exhaust ratios and air quality measures must be satisfied. Once eFlow-CAR’swere installed at the New York State Psychiatric Institute Animal Laboratories, the exacting quality measures of the AAALACwere met with improved Indoor Air Quality and Automatic Airflow Balancing as well as improved Energy Efficiency. We at eFlow USA are very excited to have been an integral part of this accomplishment!


Visit eFlowUSA.net for more information and to place your order on-line.

Moxy Hotel

Another Marriott Brand hotel, to feature  eFlow-Constant Airflow Regulators!

Moxy is Marriott’s national brand of “affordable luxury” hotels. Developed by Lightstone Group,the 13-story building at 112 East 11th Street spans 78,361 square feet and has  311 rooms, for an average size of about 250 square feet per room. In addition, the building features a restaurant and lounge in the cellar, a fitness center on the second floor, and a restaurant on the top level. The hotel is expected to open later this year.

Marriott is well known for providing an exceptional guest experience.  The designers of Marriott hotels strive to eliminate factors that could negatively impact the guest experience such as  poor ventilation and odors. That is why eFlow-Constant Airflow Regulators were utilized in the construction of The Moxy hotel to provide constant balanced and regulated exhaust throughout the hotel.  The use of eflow CARs will ensure healthy indoor air quality for guests, control stack effect, and realize energy savings in the process.


Visit eFlowUSA.net for more information and to place your order on-line.


Caribe Hilton Hotel

eFlow-Constant Airflow Regulators (CAR) installed at the Caribe Hilton Hotel, located in San Juan, Puerto Rico. 

Ventilation accounts for 40 percent of the energy consumption in most buildings. Every cubic foot of air taken out of a building has to be replaced by fresh outside air that has to be heated and cooled.  Approximate ventilation costs are $10 per CFM per year. As an example, a typical hotel with 400 Rooms averages 70 CFM in each room. Code requires only 35 CFM per room. Each room is over ventilated by 35 CFMs. That is a loss (waist) of $140,000 per year!

As part of a $100 million renovation, The Caribe Hilton Hotel in San Juan, Puerto Rico installed eFlow-CARs. This landmarked, 50-year-old, 640 room hotel will now have Automatic Balanced Airflow, Improved Indoor Air Quality and Energy efficiency!

Don’t waste your profit.  Install Constant Airflow Regulator by eFlow USA.

Visit eFlowUSA.net for more information and to place your order on-line.

Aloft Hotel

Another Aloft Hotel Features eFlow-Constant Airflow Regulators!

Starwood Hotels & Resorts Worldwide, Inc. announced in 2016 that their new Aloft hotel located in  Secaucus, NJ would feature state-of-the-art technology.  The use of advanced technology extended to the hotel’s HVAC system with the installation of eFlow-Constant Airflow Regulators (CARs).
CARs correct common ventilation issues such as stack effect and poor airflow balance.  Installation of CARs precisely and automatically regulates building ventilation systems.  By doing so, CARs save energy by reducing the load placed on heating and cooling systems and help promote High Indoor Air Quality.


Thanks to eFlow-Constant Airflow Regulators, Aloft Hotel will have High Indoor Air Quality, an automatically balanced ventilation system and energy efficiency.

Aloft Secaucus is almost complete will feature eight-stories of loft-like rooms, 3,000 square feet of state-of-the-art meeting space, an indoor Splash pool and a fitness center.


Visit eFlowUSA.net for more information and to place your order on-line.

515 West 36Th street, NYC

NYC’s 515 West 36Th street New Skyscraper features eFlow-Constant Airflow Regulators!

Developed by Lalezarian Properties and designed by  Ismael Leyva Architects, 515 West 36th Street currently graces the New York City skyline. This building reaches 418 feet into the air and spans nearly 250,000 square feet. It holds 251 apartments spread across 198,000 square feet of residential space. Twenty percent of the units, or 50 apartments, will rent for below-market rates through an affordable housing lottery. 

eFlow-Constant Airflow Regulators  were installed at 515 West 36Th street for improved ventilation system performance.  We at eFlow are proud to contribute to the building’s requirements for improved energy efficiency and healthy ventilation needs.  eFlow CARs provide high indoor air quality and automatic airflow balancing at 515 West 36th street along with other buildings in the metropolitan area that utilize eFlow CARS. eFlow-CARs are the preferred ventilation products for multi-family buildings such as apartments and condos across North America. Our CARs’ simple installation, flexibility of CFM adjustment in the field, lack of need for electricity and highly efficient performance, make them the most ideal choice for non- powered Airflow Controls in the HVAC industry today.

Visit eFlowUSA.net for more information and to place your order on-line.

515 West 36Th street, NYC

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