Move air both ways
Real ventilation needs air in and air out. Two independent 9-inch fans let you pull cool evening air in on one side while pushing warm, stale air out the other at the same time, something a single-direction fan simply cannot do.
Optimus 9 Inch Electric Reversible Twin Window Fan with Thermostat and LED Display
Two independent reversible fans that pull cool air in and push stale air out.
$81.99
- Two 9-inch fans
- Reversible airflow
- 3 speeds
- Thermostat
- LED display
Ships to the lower 48. Orders process within 2 business days.
- Fast Shipping Ships within 2 business days
- 30-Day Returns Unused items in original packaging
- U.S.-Based Support Real people, quick answers
Description
Optimus 9-Inch Electric Reversible Twin Window Fan with Thermostat and LED Display
At a Glance
- Two independent 9-inch fans you can run in the same or opposite directions.
- Reversible airflow: pull cool air in on one side and exhaust stale air on the other at the same time.
- 3 speeds with an automatic thermostat that cycles the fan to hold your set temperature.
- LED temperature display and lockable expandable side panels for a secure window fit.
Optimus built this twin window fan to move air the smart way. Its two 9-inch fans run independently, so you can draw cool evening air in through one side while pushing warm, stale air out the other. A thermostat holds your chosen temperature, an LED shows the room reading, and lockable expandable panels wedge it snugly into the window.
Key Features
- Two independent 9-inch fans: control each fan separately, including its direction, for true two-way airflow.
- Reversible intake or exhaust: bring fresh air in and vent stale air out at the same time.
- Automatic thermostat: set a temperature and the fan cycles on and off to hold it.
- LED temperature display: see the current room reading at a glance.
- Three speeds: match airflow to the weather, from a gentle breeze to full flow.
- Lockable expandable panels: the slide-out screens fill the window width and lock in place.
- Rain-resistant motors: built to handle the damp air of an open window.
Before You Buy
The honest limits, so this arrives as the product you pictured.
- This is the 9-inch F-5288 model. The blades measure 9 inches, not 8. Measure your window before ordering to be sure it fits.
- Confirm your window opening. The expandable panels widen to fill many windows, but check your opening height and width against the fan before installing.
- It mounts in a window, not a wall. This is a twin window fan designed to sit in a raised sash, not a through-wall or standing fan.
Perfect For
- Cooling a bedroom with fresh evening air
- Venting a stuffy kitchen, workshop or laundry room
- Two-way airflow to move heat out and cool air in
- Anyone who wants set-and-hold temperature control in a window fan
Full Specifications▼
Power & Performance
- Model: F-5288
- Blades: Two 9-inch
- Speeds: 3
- Airflow: Reversible intake or exhaust, independent per fan
- Voltage: 120 V
Features
- Thermostat: Automatic
- Display: LED temperature readout
- Fit: Lockable expandable side panels
- Motors: Rain resistant
Assembly
- Setup: Ships assembled, installs without tools
Frequently Asked Questions▼
Q: Is this an 8-inch or 9-inch fan?
A: It is the 9-inch F-5288 model. The blades measure 9 inches. Measure your window before ordering.
Q: Can the two fans run in opposite directions?
A: Yes. Each fan is controlled independently, so one can pull air in while the other pushes air out.
Q: What does the thermostat do?
A: You set a target temperature and the fan cycles on and off automatically to hold it.
Q: Will it fit my window?
A: The expandable side panels widen to fill many window openings and lock in place. Check your opening size against the fan before installing.
Q: Does it show the temperature?
A: Yes. An LED display shows the current room temperature reading.
Care & Use▼
Unplug the fan before cleaning. Wipe the housing and blades with a soft, barely damp cloth and let everything dry before use; do not immerse the fan or let water reach the motors. Secure the expandable panels and lower the sash onto the top flange so the fan sits firmly in the window.
California Proposition 65 Warning: This product can expose you to chemicals including DEHP, known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Why Choose Optimus?▼
Optimus has made home-comfort appliances, fans, heaters and humidifiers, for decades, with a focus on straightforward, functional designs. CurbGo chose this twin window fan because independent reversible fans plus a real thermostat and LED display deliver genuine two-way ventilation control that most window fans simply do not offer.
Shipping & Warranty
Every CurbGo order is packed carefully and dispatched quickly. Ships fast from CurbGo with tracking.
Guarantees
Shipping to the 48 contiguous states, with orders processed within 2 business days. If it is not right, you have 30 days from delivery to return unused items in the original packaging. Questions before or after you buy go to CurbGo's U.S.-based support team.
Specs
| Model | F-5288 |
|---|---|
| Blades | Two 9-inch |
| Speeds | 3 |
| Airflow | Reversible intake or exhaust, independent per fan |
| Voltage | 120 V |
| Thermostat | Automatic |
| Display | LED temperature readout |
| Fit | Lockable expandable side panels |
| Motors | Rain resistant |
| Setup | Ships assembled, installs without tools |
Why it earns its place
It is the 9-inch model
This unit is the 9-inch F-5288, confirmed by the manufacturer, even where the feed labeled it eight inches. Measuring your window against the 9-inch size before ordering means it fits the first time, with no return.
Set-and-hold comfort
An automatic thermostat cycles the fans to hold your chosen temperature, and an LED display shows the current room reading. Three speeds and rain-resistant motors let it run through a cool, damp night without fuss.
Two-way airflow
The fan, in numbers.
2
Independent fans
9 in
Blade size
3
Speeds
Auto
Thermostat
Against a basic single window fan
Airflow
Two independent fans can run in opposite directions, drawing cool air in on one side while exhausting warm air out the other, where a single fan only pushes one way.
Control
An automatic thermostat cycles the fan to hold a set temperature and an LED shows the room reading, a level of control a plain on-off window fan does not offer.
Fit
Lockable expandable side panels slide out to fill and grip many different window widths and stay put, instead of leaving open gaps around a single fixed-width fan that never quite seals.
Is this an 8-inch or 9-inch fan?
It is the 9-inch F-5288 model. The blades measure 9 inches. Measure your window before ordering.
Can the two fans run in opposite directions?
Yes. Each fan is controlled independently, so one can pull air in while the other pushes air out.
What does the thermostat do?
You set a target temperature and the fan cycles on and off automatically to hold it.
Will it fit my window?
The expandable side panels widen to fill many window openings and lock in place. Check your opening size against the fan before installing.
Does it show the temperature?
Yes. An LED display shows the current room temperature reading.
How fast will it ship and can I return it?
Orders ship to the 48 contiguous states and process within 2 business days. If it is not right, you have 30 days from delivery to return unused items in the original packaging.
Optimus has made home-comfort appliances, fans, heaters and humidifiers, for decades, with a focus on straightforward, functional designs. CurbGo chose this twin window fan because independent reversible fans plus a real thermostat and LED display deliver two-way ventilation control that most window fans simply do not offer.