Cool Boss Portable Evaporative Air Cooler - CB-28

The CB-28 is a medium-duty commercial-grade cooler that is well-suited for large industrial space cooling. When temperatures rise and you’re looking for a cost-effective cooling solution, look no further than Cool Boss. The CB-28 evaporative cooler puts out big air - exactly what you’d expect from the world leader in commercial-grade cooling technology. Use it indoors or out and help turn summer to winter with just everyday tap water. Even though the CB-28 is equipped with a whopping 80-gallon auto-refilling reservoir, because of its abundant water-holding size, it can literally run for hours without the need for refilling, just in case you’re using it where no garden hose is available. With an air delivery of 9,020 CFM and coverage of 2,125 square feet, it’s no wonder that the CB-28 is one of our favorites and our customers too.

Cool Boss evaporative air coolers provide instant comfort solutions by using water evaporation to reducesurrounding temperatures without consuming large amounts of energy. This eco-friendly technology allows youto instantly chill areas at a fraction of the cost of traditional air-cooling methods. The Cool Boss CB-28 isequipped with four Honeycool™ evaporative media pads that act like a sponge and soak up water, kind of like apre-chiller for the incoming air.

The resin-covered honeycomb allows air to pass through which results in evaporation. This phasetransition of liquid water to water vapor turns hot stuffy air into fresh cool awesomeness. Variable fan speeds along with the Blue Flex™ axial-flow fan and water-flow controls allow you to precisely deliver just how much cool air you need. The axial-flow design and flexing nature of the fan blades pull more air at idle while reducing engine drag at high RPM’s for peak performance and cost-saving efficiency.

Fill Cap
If you don’t want your cooler to be hooked up to a garden hose you can manually fill the reservoir by accessing the fill cap located on the front of your Cool Boss.

Water Level Indicator
Easily check the water level of your air cooler with the indicator located under the axial-flow fan.Blue Flex™ Axial-Flow FanThe axial-flow design and flexing nature of the fan blades pull more air at idle, while reducing engine drag at high rpm’s for peak performance and cost-saving efficiency.

Venturi Fan Cone
The COOLBLAST SERIES is equipped with a directional venturi fan cone design that concentrates the air velocity as it passes through, creating a more powerful and directional blast of chilled air.

LED Floodlight
The COOLBLAST Series includes an adjustable 80W outdoor-rated flood light that puts out 4000 lumens of super-bright light. This is ideal for lighting up your work area for increased safety and productivity. Whywould you need that you ask? Why not, we say.

Horizontal Stackable Design
If you ever need to get your air coolers out of the way you can conveniently stack them together with the stacking design on each corner.

Anion Negative Ion Air Purifier
A built-in anion negative ion air purifier helps keep workers happy and healthy. It works by negatively charging the air which causes dirt and other harmful airborne particles to easily stick to walls and the floors, which canthen be cleaned up with minimal effort.

Shutoff Timer
Don’t worry about forgetting to turn off your air cooler again. With a shutoff timer, you can conveniently set your air cooler to turn off when you need it to.GFCI PlugA GFCI plug precisely monitors the balance of an electrical current moving through a circuit and is designed to shut off electric power in the event of a ground fault.

Remote Control
A wireless remote allows you to operate the air cooler settings conveniently from a distance. A holder is mounted on the front, so you do not have to worry about remembering where the controller was last left.

Locking Caster
And with big wheels on your Cool Boss, you can rest assured when we say this is portable. Without these massive, ruggedly built casters, you’d still have the best air cooler in the industry. It would just sit a few inches loweron the ground and wouldn’t move anywhere.

Water Guard
A handy rail that catches water to ensure nothing spills on the floor, keeping your area dry.

Honeycool™ Evaporative
This is where the magic happens. Hot air from the outdoors gets sucked in and pushed out of our air cooler, but first, it gets trapped by the media pad.

Built-In Speakers
Listen to your favorite music, podcast, or audiobooks with a built-in Bluetooth® audio player and stereo speakers that transform your Cool Boss into a giant boom-box.

360° Handle For Better Control
360° handles ensure that you do not lose grip when moving your air cooler. Whether it is empty or full, having a firm grip will make the job a whole lot easier.

Flow Control Valve
Control how much water flow is desired to lengthen the running time between fill-ups. Having the valve wide open can increase humidity by as much as 17%.

Constant Water Inlet
Never worry about forgetting to refill your air cooler. Just hook up a garden hose to the water inlet and you have yourself an auto-refilling reservoir that will keep your area cool all day.

Low Level Shutoff
Don’t worry about wasting water again. Cool Boss has your back and will automatically shut off if the water level gets too low. This convenient feature will keep your Cool Boss running as great as the day you bought it for years to come.

• Remote control with a convenient holder
• Automatic water source shutoff
• Water inlet flow control
• Durable ABS plastic shell construction
• Honeycool™ evaporative media
• Built-in anion negative ion air purifier
• Protective cover comes standard
• Space-saving design
• Bluetooth® audio player
• Variable-speed fan
• LED floodlight
• Built-in timer
• 60-gallon reservoir
• Extra-long power cord
• Soft-touch LED controls
• Antibacterial housing
• Durable swivel casters
• GFCI plug
• UL® certified

Cool Boss

Duration: From the date of purchase by the original Purchaser or 12-24 months from the date of shipment by BendPak or whichever comes first.

• One Year (12-Months) Warranty on equipment structure*
• One Year (12-Months) Warranty on operating components
• One Year (12-Months) Free-Shipping* on ground-freight charges related to warranty performance

Optional Extended 2-Year Warranty

Available only BEFORE you place your final order, we double your warranty from one year to two. For a small extra charge, ensure your Cool Boss swamp cooler is absolutely covered for two full earth revolutions around the sun—that’s a whole lot of heat!

Limited Warranty

1. Who gives this warranty (Warrantor): BendPak Inc., 1645 Lemonwood Dr., Santa Paula, CA 93060
2. Who receives this warranty (Purchaser): The original Purchaser (other than for purpose of resale)
3. What products are covered by this warranty: Cool Boss portable evaporative air cooler
4. What is covered under this warranty: manufacturer defects due to material and/or workmanship with the exceptions noted below.
5. What is not covered under this warranty:
a. Any failure that results from Purchaser’s abuse, neglect or failure to operate, maintain or service product in accordance with instructions provided in the owner’s manual(s) supplied
b. Any damage caused by using equipment beyond rated capacity and/or capability
c. Items or service normally required to maintain the product, i.e. lubricants, oil, etc.
d.Items considered general wear parts such as rubber or plastic pads/protectors, worn casters/wheels, plastic trays, etc. unless wear or failure is a direct result of manufacturer defect due to material and/or workmanship
e. Any component damaged in shipment or any failure caused by installing or operating equipment under conditions not in accordance with installation and operation guidelines or damaged by contact with tools or surroundings
f. Any component failure caused by rain, excessive humidity, corrosive environments or other contaminants
g. Rusted components due to improper maintenance or corrosive environments
h. Cosmetic defects that do not interfere with product functionality
i. Damage due to incorrect voltage or improper wiring
j. Any incidental, indirect, or consequential loss, damage, or expense that may result from any defect, failure, or malfunction of a Cool Boss product
k. All electrical components are guaranteed for one year against defects in workmanship and/or materials when the lift is installed and used according to specifications 6. Responsibilities of Warrantor under this warranty: Repair or replace with either new or reconditioned unit at Warrantor’s option, component and/or unit which is defective, has malfunctioned and/or failed to conform within duration of the warranty period.
7. Responsibilities of Purchaser under this warranty:
a. Provide dated proof of purchase and maintenance records
b. n some cases, components may be required to be shipped to the nearest Cool Boss Authorized Service Center. Freight costs, after 12‐months, must be borne by the Purchaser.
c. When Warrantor will perform repair or replacement under this warranty: Repair or replacement will be scheduled and serviced according to the normal work flow at the servicing location, and depending on the availability of replacement parts

*Equipment structure is defined as any non‐moving permanently affixed frame or main body, or sub‐structures that are non‐moving and permanently affixed or attached to any main equipment structure or frame

**Free-shipping applies to direct shipping points within the 48 continental United States. Rural area shipping surcharge may apply for remote addresses.

Limitation of Liability
Cool Boss shall have no obligation pursuant to this Warranty with respect to products which in our sole judgment have been altered damaged, misused, abused, badly worn, lost or improperly maintained. This Warranty is null and void if the customer or any other person other than an authorized representative of Cool Boss has made any attempt to service or modify the tool prior to its return to Cool Boss under this Warranty. In no event will either party be liable for any damage caused by the other party's failure to fulfill its responsibilities under these terms and conditions. In no event will either party be liable for any lost profits, lost savings, incidental damage, or other economic consequential damages Cool Boss products are provided and sold as is without any express or implied warranties including warranties of merchantability or fitness for particular purpose. No warranties, expressed or implied, will apply after this period. Cool Boss may modify these terms and conditions at any time by either providing the customer with written notice or posting such revised terms on www.coolboss.com. Such revised terms shall be effective thirty days from the date of such written notice or posting.