HeaBoom Portable Air Conditioners Fan, Touch Screen Evaporative Air Cooler with 4 Speeds, 600ML Tank, 3 Timers & LED Lights, Portable AC Unit Personal Mini Air Conditioner Cooling Fan for Bedroom Home Office

I set the F2 on the corner of my desk, filled the 600 mL tank with cold water and a few ice cubes, and let it run while I worked. Within a minute, the airstream felt noticeably cooler than a standard fan—enough to take the edge off a warm afternoon without blasting the entire room. After a week of moving it between a small home office and a nightstand, here’s how it stacked up.

Setup and Design

The F2 is compact (about 8.7 inches tall) and light enough to move around with one hand. It’s powered over USB and draws only 10 W, so a phone charger, laptop port, or power bank will run it. There’s no internal battery—something to remember if you’re planning to use it outdoors or in spots without outlets. The handle and small footprint make it easy to relocate, and the clean, white-and-black shell looks tidy on a desk or shelf.

The water tank holds 600 mL, which is plenty for a workday at lower speeds. Filling is straightforward, and I didn’t experience leaks or slosh issues when carrying it room to room. A manual tilt mechanism lets you angle airflow up or down about 60°, which helped direct the cool plume where I wanted it without constantly re-positioning the base.

Controls and Modes

The touchscreen is responsive and intuitive. A quick tap powers the unit, and simple icons handle the rest:

• Four fan speeds, with a “Natural” mode that cycles from low to high and back to mimic a breeze
• Three timers (2, 4, 6 hours) for set-and-forget operation
• A 7-color LED effect that creates a soft glow (nice as an accent light, less so if you’re light-sensitive at night)

I mostly used Speed II or III during the day and the timer at night. The Natural mode did a good job making the airflow feel less monotonous, though for focused cooling I preferred a steady speed.

Cooling Performance

This is not a compressor-based air conditioner; it’s an evaporative cooler with ultrasonic mist. That distinction matters. The F2 won’t drop the ambient temperature of an entire room. Instead, it creates a localized stream of cooled, humidified air that feels much more comfortable within a few feet of the outlet.

• At 1–2 feet, the airstream feels significantly cooler than a normal desk fan, especially with cold water or a handful of ice in the tank.
• At 3–5 feet, the effect is present but more subtle; it’s best as a personal cooler aimed at your face and torso, or across a pillow at night.
• In dry air, evaporative cooling shines. In very humid conditions, you’ll still feel airflow, but the “chill” diminishes because the air can’t absorb as much moisture.

For me, the F2 transformed a warm desk into a comfortable workspace and made falling asleep easier on hot nights. It won’t replace an A/C or cool a living room, but it does exactly what a personal evaporative unit should: make the area immediately around you feel cooler.

Noise and Comfort

Noise is impressively low. On Speed I–II, it disappears into the background—a soft hum comparable to a quiet library. Speed III adds a bit of whoosh but remained call-friendly. Even at Speed IV, I wouldn’t call it loud; it’s just audible airflow. I ran it next to a microphone during video calls without complaints, and it never disturbed my sleep.

The mist is very fine, more like a cool cloud in the airstream than visible droplets. Surfaces didn’t become damp in my tests when the unit was aimed properly. If you live in a very humid area, consider placing it on a coaster or tray just in case.

Power and Efficiency

At 10 W, the F2 is frugal. Run it eight hours and you’ve used about 0.08 kWh—pennies in most regions. Being USB-powered makes it flexible: I ran it from a 20 W phone charger, a laptop USB-A port, and a 10,000 mAh power bank. The power bank gave me roughly 3–4 hours at moderate speeds, which was handy on the patio.

Water Use and Runtime

Water consumption varies with speed and room humidity:

• Low speeds: 6–8 hours per 600 mL fill in my dry office
• Medium speeds: around 4–6 hours
• High speed: closer to 2–4 hours

Ice and chilled water boosted the perceived cooling, especially for the first hour. Refills are quick, but if you plan on overnight use, set a timer that matches your expected tank life to avoid running the fan dry.

Maintenance and Care

Evaporative units ask for a bit of routine care:

• Empty the tank daily if you’re not using it continuously; let it air dry to prevent odor or biofilm.
• Rinse the reservoir every few days; a mild vinegar solution weekly helps prevent mineral build-up (distilled water reduces this).
• Avoid adding essential oils, which can damage ultrasonic components and leave residue.

This is simple stuff and takes a minute or two. Skip it, and any water-based cooler will eventually smell musty.

Usability Touches

A few small details make the F2 nicer to live with:

• The 60° tilt is far more useful than a fixed-angle face; you can aim it across a keyboard without blowing papers.
• The timer button is a great quality-of-life feature for sleep or focused work sessions.
• The Natural wind mode is surprisingly pleasant in the evening when constant airflow starts to feel stale.
• The LED lighting is optional ambiance. I appreciated the soft cycle during downtime, though I wish there were a one-tap “lights off” shortcut on the panel.

Where It Falls Short

No personal cooler is perfect, and the F2 has predictable limitations:

• It won’t cool a whole room. Think of it as a personal microclimate device.
• Effectiveness depends on humidity. The drier the air, the better it performs.
• No internal battery. It must remain plugged in, which is fine at a desk, less convenient on the go.
• The tank capacity is good for a work block or night’s sleep at lower speeds, but expect refills on hot, high-speed days.

None of these are dealbreakers for its intended use; they’re inherent to the category.

Who It’s For

• Desk workers who run warm and want a cool airstream without cranking household A/C
• Dorms, small bedrooms, craft corners, and bedside tables where space and noise matter
• Renters or anyone looking for an energy-efficient spot solution
• People in drier climates (or air-conditioned spaces) who will see the best evaporative gains

If you live in persistently humid conditions and want to cool an entire room, a window unit or portable compressor A/C is the right tool. If you want a cool breeze aimed at you, the F2 is a smart, efficient pick.

The Bottom Line

The F2 strikes the right balance of size, simplicity, and performance for a personal evaporative cooler. It’s quiet, sips power, and meaningfully improves comfort within a couple of feet. The touchscreen controls, four speeds, three timers, and 7-color light give it a modern feel without complicating the basics. Add in the 600 mL tank and 60° tilt, and you get a compact tool that fits naturally into a work or sleep routine.

Recommendation: I recommend the F2 for anyone seeking targeted, energy-efficient personal cooling at a desk or bedside—especially in dry or air-conditioned environments. It won’t replace an air conditioner or cool a whole room, but used as intended, it’s an effective, quiet, and low-cost way to stay comfortable.