Cool Boss 50 Gallon Portable Evaporative Cooler - 7,540 CFM | 110V

High-Volume 7,540 CFM Portable Evaporative Cooler for Commercial and Industrial Spaces with Automatic Swing Louvers

The Cool Boss CB-26SL is a portable evaporative air cooler designed to provide targeted cooling for warehouses, workshops, automotive service bays, garages, and other well-ventilated indoor or outdoor work areas. Combining manufacturer-rated airflow up to 7,540 CFM with Honeycool™ evaporative cooling media and a 26-inch Blue Flex™ axial-flow fan, this self-contained cooling system delivers localized temperature reduction while offering flexible placement and convenient relocation between work areas. Its 50-gallon water reservoir, 10-speed fan control, automatic swing louvers, and remote control support convenient cooling and air distribution for demanding applications.

Key Benefits

• High-Volume Cooling Performance – Delivers up to 7,540 CFM of airflow to help improve comfort in hot work areas.
• Honeycool™ Evaporative Cooling Technology – Uses water-saturated evaporative media to cool incoming air through evaporation without a conventional refrigerant-based cooling cycle.
• Portable Mobility – Locking swivel casters support convenient movement and secure positioning between work areas.
• Automatic Swing Louvers – Oscillating louvers distribute cooled air across a wider area.
• Flexible Installation – The self-contained design and integrated water reservoir provide supplemental cooling without requiring a permanent HVAC installation.
• Convenient Water Management – A 50-gallon reservoir and mechanical float valve support water supply management, while the pump's automatic low-water shutoff helps protect the pump.
• Simple Controls and Electrical Connection – Ten fan-speed settings, user-friendly controls, a remote control, and a 15-foot power cord support convenient operation.
• Durable Construction – Antibacterial housing and accessible evaporative media support routine cleaning and maintenance.

High-Volume Cooling Performance

The Cool Boss CB-26SL provides manufacturer-rated maximum airflow of up to 7,540 CFM through its 26-inch-diameter axial-flow fan. The manufacturer lists a coverage area of up to 4,150 square feet under specified conditions. Ten fan-speed settings allow users to adjust airflow according to changing cooling requirements, making the unit suitable for larger workshops, garages, warehouses, and service areas. Evaporative cooling performance depends on ambient temperature, relative humidity, ventilation, and operating conditions. The system is generally most effective in hot, dry environments.

Honeycool™ Direct Evaporative Cooling Technology

The Cool Boss CB-26SL uses direct evaporative cooling technology to cool incoming air as water evaporates from its Honeycool™ evaporative media. The integrated water distribution system supplies water to the media, while the axial-flow fan draws air through the wetted surface and delivers cooled airflow into the surrounding space. The manufacturer specifies evaporative media measuring approximately 39 inches high, 14 inches wide, and 6 inches deep. This design provides supplemental cooling without relying on a conventional compressor-based refrigeration system. Evaporative cooling adds moisture to the air, so adequate ventilation is essential, and cooling effectiveness decreases as ambient relative humidity increases.

Airflow and Distribution

The Cool Boss CB-26SL features a 26-inch Blue Flex™ axial-flow fan with 10 fan-speed settings and manufacturer-rated maximum airflow of up to 7,540 CFM. Automatic swing louvers oscillate to distribute cooled air across a wider area, helping improve air circulation in workshops, garages, warehouses, and other workspaces. The remote control allows users to adjust operation conveniently when positioned away from the control panel. The manufacturer lists a sound level of approximately 73 to 97 dB; actual sound levels vary with fan speed, operating conditions, and the surrounding environment.

Portable and Flexible Installation

The self-contained portable design allows the Cool Boss CB-26SL to be positioned where supplemental cooling is needed without requiring a permanent HVAC installation. The manufacturer lists dimensions of approximately 43 inches wide, 27 inches deep, and 66 inches high, with an empty weight of approximately 209 pounds. Locking swivel casters support movement and secure positioning between suitable work areas. The integrated water reservoir allows temporary operation without a continuous external water connection, while the water inlet connection supports replenishment from a compatible supply. Position the unit on a stable surface and follow the manufacturer's installation instructions before operation.

Water Management

The Cool Boss CB-26SL incorporates a 50-gallon (approximately 189-liter) water reservoir to supply its direct evaporative cooling system. The manufacturer specifies that a mechanical float valve automatically shuts off the external water supply when the reservoir reaches its maximum fill level. The internal water pump incorporates an automatic low-level shutoff to help protect the pump when the water level becomes insufficient. The unit can be filled manually or connected to a compatible external water supply. The manufacturer's manual specifies an inlet water temperature below 45°C (113°F). Follow the manufacturer's instructions for water connections, filling, draining, and cleaning the reservoir.

Controls, Comfort and Electrical Connection

The Cool Boss CB-26SL features user-friendly controls, 10 fan-speed settings, automatic swing louvers, and a remote control with a convenient holder. The standard CB-26SL model operates on a 110 V AC, single-phase, 60 Hz electrical supply and draws a maximum of 5.2 A. The unit includes a 15-foot power cord and must be connected to a grounded circuit protected by a circuit breaker or fuse. The optional CB-26SLH is a separate high-voltage model designed for 208–230 V AC, 50–60 Hz, single-phase power, with a maximum current draw of approximately 2.73 A. Verify the unit's nameplate and applicable installation manual before connecting the cooler to an electrical supply.

Commercial and Industrial Applications

The Cool Boss CB-26SL is designed for garages, workshops, automotive service bays, warehouses, and other well-ventilated environments requiring supplemental cooling. Its high-volume airflow, automatic swing louvers, large water reservoir, and portable construction make it suitable for localized cooling where installing or extending a permanent air-conditioning system may not be practical. The manufacturer lists UL certification for the product. Direct evaporative cooling is generally most effective in hot, dry conditions, and cooling performance decreases as ambient relative humidity increases. Adequate ventilation is essential because the system adds moisture to the air.

Mobility and Deployment

The Cool Boss CB-26SL features a durable ABS plastic housing and locking swivel casters designed to support movement between suitable work areas. Its approximately 43-inch width, 27-inch depth, and 66-inch height accommodate the fan assembly and integrated 50-gallon water reservoir. The unit weighs approximately 209 pounds when empty and 609 pounds when full. Lock at least two casters before operating the fan, as directed in the manufacturer's manual. Follow the manufacturer's instructions for managing the water supply, securing the power cord, and positioning the cooler safely.

Service and Maintenance

The Cool Boss CB-26SL incorporates Honeycool™ evaporative media and antibacterial housing designed for portable cooling applications. Routine maintenance includes inspecting and cleaning the media panels, cleaning the water reservoir, checking the mechanical float valve and water distribution system, and inspecting the power cord and plug for damage. Keep the reservoir filled with clean tap water during operation and clean the media and reservoir periodically to remove accumulated dirt and pollutants. Do not spray the media with high-pressure water while it is installed in the cooler. Disconnect electrical power before servicing internal components or performing maintenance that requires access to electrical or moving parts. Follow the manufacturer's installation and operation manual for detailed cleaning and service procedures.

Warranty

Warranty coverage for the Cool Boss CB-26SL is subject to the manufacturer's current warranty terms and conditions. Refer to the official Cool Boss warranty documentation for the applicable coverage period, covered components, exclusions, registration requirements, and service procedures for the specific model and purchase date.

Recommended Accessories

• Protective Cover – Confirm availability and compatibility with the CB-26SL through Cool Boss or an authorized dealer.
• Garden Hose and Water Connection – For connecting the cooler to a compatible external water supply; verify the required fittings and pressure specifications before purchase.
• Replacement Honeycool™ Evaporative Media – Use manufacturer-approved replacement media compatible with the CB-26SL; confirm the correct dimensions and part number before ordering.
• Replacement Water Pump – Confirm the correct replacement pump and part number with Cool Boss or an authorized service provider.
• Replacement Float Valve and Water-System Components – Verify compatibility with the CB-26SL before ordering replacement parts.

High-Volume Portable Cooling with the Cool Boss CB-26SL

Improve comfort in hot work environments with the Cool Boss CB-26SL portable evaporative cooler. Combining manufacturer-rated airflow up to 7,540 CFM with Honeycool™ evaporative media, a 26-inch Blue Flex™ axial-flow fan, automatic swing louvers, and a 50-gallon water reservoir, this portable cooling system provides flexible, targeted cooling for garages, workshops, automotive service bays, warehouses, and other well-ventilated commercial and industrial applications.

No Return Policy

All Cool Boss commercial unit sales are final and are non-refundable.