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The 4-in-1 Large Capacity 20L Outdoor Air Cooler with High Wind Power (Model 28AR) is a high-output evaporative cooler designed for larger spaces and semi-outdoor environments. Powered by a 120W 100% copper motor driving a centrifugal fan, this unit delivers a wind speed of 9.5 m/s and an airflow capacity of 1500 m³/h, making it suitable for areas where smaller coolers provide insufficient airflow. The 20L water tank supports extended operation between refills, and three fan speed settings allow adjustment of cooling intensity. The unit combines four operating modes—cooling, fan-only, humidifying, and anion—accessible through the top control panel and included remote control. Automatic left-right oscillation and manual up-down louvers direct airflow across wide areas, while a 9-hour timer supports scheduled operation. Four caster wheels enable mobility, and the ABS plastic housing provides structural durability.
Driven by a 120W 100% copper motor and a centrifugal fan design, the cooler generates a wind speed of 9.5 m/s and an airflow capacity of 1500 m³/h. The centrifugal fan configuration supports higher air pressure output compared to axial fan designs, suiting larger or more open spaces.
The 20L water tank provides substantial water volume, reducing the frequency of refills during all-day operation. This capacity is particularly useful in locations where access to a water source is limited or where continuous cooling is required for extended periods.
Three fan speed settings—low, medium, and high—allow users to balance cooling output against energy use and noise. The 9-hour timer, controlled via the included remote, enables scheduled operation for shift-based or time-specific cooling needs.
The unit offers four selectable modes: cooling mode with water evaporation, fan-only mode for air movement without cooling, humidifying mode for moisture addition, and anion mode for negative ion release. Users switch between modes through the control panel or remote control.
Automatic left-right oscillation sweeps airflow across a wide horizontal arc, while manual up-down louvers adjust the vertical angle. The included remote control allows speed, mode, timer, and swing adjustments from a distance.
Four caster wheels attach to the base, supporting rolling movement across flat surfaces. With product dimensions of 360 × 330 × 880 mm and a net weight of 11 kg, the unit can be repositioned by a single person for use in different areas of a facility.
The high wind power output of this cooler distinguishes it from smaller indoor models. With a wind speed of 9.5 m/s and an airflow capacity of 1500 m³/h, the unit moves a significant volume of air per hour, making it suitable for larger rooms, open-plan spaces, and semi-outdoor areas where standard coolers may not reach far enough. The centrifugal fan design contributes to higher air pressure at the outlet, which helps the airflow travel greater distances. Three speed settings allow operators to adjust output based on ambient temperature, occupancy levels, and the size of the space being cooled. For commercial and industrial applications where consistent air movement supports both comfort and process needs, the measured airflow and wind speed specifications provide a basis for deployment planning.
The 20L water tank is a defining feature of this model, enabling longer operating intervals between refills. In cooling mode, water from the tank feeds the evaporative cooling pad, where evaporation absorbs heat from the incoming air. The larger tank capacity reduces the labor associated with frequent refilling, which is particularly relevant in settings where staff time is limited or where the unit operates for full workdays. A water level indicator allows operators to monitor remaining water at a glance and plan refills accordingly. For facilities managing multiple units, the 20L capacity can reduce per-unit maintenance frequency compared to smaller tank models.
The 4-in-1 designation refers to the four operating modes available on this unit. Cooling mode uses water evaporation to lower air temperature, suitable for warm and dry conditions. Fan-only mode circulates air without water, functioning as a standard fan when cooling is not required. Humidifying mode adds moisture to the air through the evaporative pad, which can be useful in dry environments or during winter heating seasons. Anion mode releases negative ions into the airflow, operating alongside any of the other modes. Users select the desired mode through the top control panel or the included remote control, and modes can be combined or toggled independently based on current needs.
Specification | Details |
|---|---|
Swing | Automatic left/right swing, Manual up/down swing |
Wind Speed | 9.5 m/s |
Control Type | Remote type |
Airflow Capacity | 1500 m³/h |
Power | 120W |
Water Tank | 20L unremovable water tank |
Fan Type | Centrifugal fan |
Motor | 100% copper motor |
Material | ABS plastic |
Timer | 9 hour |
Speed Setting | 3 fan speeds |
Additional Function | With anion function |
Net Weight | 11 kg |
Gross Weight | 12 kg |
Product Size | 360 × 330 × 880 mm |
Packing Size | 419 × 380 × 910 mm |
Accessories | 1 remote + 4 castors |
This large-capacity air cooler is suited for a range of commercial, industrial, and semi-outdoor applications. Warehouses and distribution centers can deploy units in loading docks, packing areas, and staff break rooms to supplement ventilation during warm months. Manufacturing facilities, including assembly lines and workshop areas, use the high airflow output to support worker comfort in spaces without ducted cooling. Outdoor event settings, such as market stalls, exhibition booths, and patio dining areas, benefit from the 20L tank and mobile design. Agricultural and horticultural operations, including greenhouses and propagation areas, can use the humidifying mode alongside cooling. For commercial procurement teams sourcing for industrial applications, the documented airflow, wind speed, and tank capacity specifications support comparison against site requirements before purchase.
The water tank holds 20L, supporting extended operation between refills. The tank is non-removable and is filled from the top of the unit.
The cooler delivers a wind speed of 9.5 m/s and an airflow capacity of 1500 m³/h, driven by a centrifugal fan and a 120W copper motor.
The 4-in-1 designation refers to four operating modes: cooling, fan-only, humidifying, and anion function, selectable via the control panel or remote control.
The cooler offers 3 fan speed settings: low, medium, and high.
The timer supports up to 9 hours of scheduled operation.
Each unit includes one remote control and four caster wheels.
