The test I ran on myself
I'll be straight with you: when we first prototyped an ice-cooling fan, I assumed it was a gimmick. A small plate can't really make air cold, right? So I took the F35 out on a 34°C afternoon in Shenzhen and held it to my face for a minute, then switched to a normal fan. The difference was immediate and embarrassing — I'd been wrong. The F35's breeze felt like stepping from a stuffy room into a tiled hallway. That's the moment I stopped calling it a gimmick.
I'm Andy, founder of BABELMAKE. Ten years writing code before this, fifteen years out of university, and now I run a small factory here in Shenzhen where I personally check the units before they ship. I'm not a scientist, but I am the guy who decides what we put our name on, and the F35 earned it. If you've ever stood on a platform willing the train to arrive faster just so you could step into its moving air, you'll understand exactly the gap this little device fills.
Moving air versus cold air
Here's the thing most people miss. A regular fan doesn't cool the air — it cools *you*, by speeding up the evaporation of your sweat. That works, but on a humid day when you're already soaked, moving warm air around doesn't do much. An ice-cooling fan goes one step further: it passes the air over a chilled plate so the stream that hits your skin is actually cold. Different mechanism, different relief. I learned this the hard way during a humid August when a normal fan just pushed the warm stickiness around my face and made me more aware of being hot, not less — the afternoon I finally stopped dismissing the cold-air idea.
How the F35 actually does it
The F35 Handheld Fan pairs a strong motor with a cooling plate built into the airflow path. Turn it on and the air gets pulled past that chilled surface before it reaches you. You feel a genuine chill, not just wind. On the train platform after work, I'll hold it up for twenty seconds and my face goes from "melting" to "okay, I can think again." That's the whole pitch, and it's real.
The first ten seconds
Here's what I notice when I switch it on mid-commute. For the first few seconds your skin reads it as "wind," then your brain catches up that the wind is *cold*, and your shoulders drop a little. It's a tiny physical reset. On days when the subway is so packed you can't turn your body, being able to aim cold air at your own neck is a small kind of freedom. I've watched colleagues borrow it once and then go order their own — that's the most honest review I get, and I trust it more than any star rating.
Who actually benefits
This isn't for everyone, and I'd rather be honest than sell you something you don't need.
- Anyone living somewhere hot *and* humid, where a normal fan just moves the stickiness around.
- People who feel heat more as they get older — the body's cooling system slows down, and cold air helps more than a breeze.
- Outdoor workers, market shoppers, people standing in festival lines or commuter queues for an hour at a time.
If your summers are dry and mild, a plain fan is probably enough. If your summers are the kind that make you rethink your life choices, the F35 is the one I'd hand you.
The honest limits
Nothing's perfect, and I'd be a bad founder if I pretended otherwise. The F35 needs charging a bit more often than a plain fan, because running that plate costs energy. And in truly extreme heat the "ice" effect fades faster than on a mild day — it's a tool for a hot afternoon, not a replacement for air conditioning. But measured per dollar of relief, for daily summer use, it's the best value we make.
One more honest note: the cold plate needs a moment to do its work. It isn't instant like flipping on a fridge light; give it ten or fifteen seconds and the air settles into that chilled feel. People who expect a blast of arctic air in the first second are disappointed, while people who give it a breath are won over — and that breath is about as long as a red light.
What it feels like day to day
I keep an F35 in my work bag and reach for it maybe four or five times a day in July and August. The weight is there but not annoying — you feel it, then you stop noticing because your face is happy. The noise is low enough that nobody on the subway turns to look. And the ritual of it — pull it out, point, exhale — has become weirdly comforting. It's a small thing that makes a long hot day shorter. My wife now keeps one in her own bag too, after quietly stealing mine for a week, which I'll count as the highest possible endorsement from someone who otherwise ignores most of what I make.
If you're curious
You can see the F35 ice-cooling fan up close, or browse the wider handheld fan collection if you want to compare it against the simpler models. Either way, the question "does it work?" — from me, who doubted it first — is yes.
---