---
product_id: 960027
title: "O2COOL Treva 5 Inch Battery Powered Fan Portable Desk Fan 2 Cooling Speeds with Compact Folding & Tilt Design Cubicle Accessories Small Portable (Black)"
brand: "o2cool"
price: "171 Lei"
currency: RON
in_stock: true
reviews_count: 8
url: https://www.desertcart.ro/products/960027-o2cool-treva-5-inch-battery-powered-fan-portable-desk-fan
store_origin: RO
region: Romania
---

# Compact folding design 2 D batteries required 2 cooling speeds O2COOL Treva 5 Inch Battery Powered Fan Portable Desk Fan 2 Cooling Speeds with Compact Folding & Tilt Design Cubicle Accessories Small Portable (Black)

**Brand:** o2cool
**Price:** 171 Lei
**Availability:** ✅ In Stock

## Summary

> 🌟 Cool down in style, anytime, anywhere!

## Quick Answers

- **What is this?** O2COOL Treva 5 Inch Battery Powered Fan Portable Desk Fan 2 Cooling Speeds with Compact Folding & Tilt Design Cubicle Accessories Small Portable (Black) by o2cool
- **How much does it cost?** 171 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/960027-o2cool-treva-5-inch-battery-powered-fan-portable-desk-fan)

## Best For

- o2cool enthusiasts

## Why This Product

- Trusted o2cool brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Emergency Ready:** Be prepared for power outages with ease.
- • **Stay Cool Anywhere:** Perfect for your desk or on-the-go!
- • **Space-Saving Design:** Folds up for effortless portability.
- • **User-Friendly Setup:** Quick battery installation for instant relief.
- • **Whisper-Quiet Operation:** Enjoy peace while you cool down.

## Overview

The O2COOL Treva 5 Inch Battery Powered Fan is a compact and portable solution for staying cool during hot days. With two adjustable speeds and a folding design, it’s perfect for both office desks and travel. This fan operates quietly on two D batteries, making it an ideal choice for emergency preparedness and personal comfort.

## Description

O2COOL Treva 5 Inch Battery Powered Fan Portable Desk Fan 2 Cooling Speeds with Compact Folding & Tilt Design Cubicle Accessories Small Portable (Black)

## Features

- BATTERY POWER FAN - This 5-Inch portable fan from Treva runs on 2 D batteries (not included), cool gadgets for an awesome office desk accessories or floor fan for your summer cooling
- COMPACT DESIGN: This mini fan won’t take up much space and features a convenient folding design, so you can use it as a window fan or travel fan to go with you
- TWO-SPEED OPERATION: To accommodate your needs, the box fan features high and low speeds. The cooling fan boasts a quiet operation on both settings so you can read or relax without any distractions.
- EASY TO USE: This personal fan runs on two DD batteries (not included). To install, slide out the battery door and insert batteries following (+/-) marks, then replace door.
- EMERGENCY/DISASTER PREPAREDNESS: Make sure you’re prepared with this table fan bedroom fan the next time a power outage occurs. You can stay cool and comfortable without electrical power

## Product Details

- **Brand:** O2COOL
- **Color:** Black
- **Electric fan design:** Table Fan
- **Power Source:** Battery Powered
- **Style:** Traditional
- **Product Dimensions:** 4.3"D x 6.6"W x 6.2"H
- **Room Type:** Home Office,Dorm
- **Special Feature:** Portable,Adjustable Tilt,2 Speeds,Lightweight
- **Recommended Uses For Product:** Air Circulation, Cooling
- **Wattage:** 3.6E+4

## Images

![O2COOL Treva 5 Inch Battery Powered Fan Portable Desk Fan 2 Cooling Speeds with Compact Folding & Tilt Design Cubicle Accessories Small Portable (Black) - Image 1](https://m.media-amazon.com/images/I/71IhoaRrgZL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: What is the battery life at high and low speeds?  Thanks.**
A: I just got 3 of these on a hot summer day. Although I have AC, I don't push it hard to save on the electric, so use fans to help make the AC feel a little cooler, & circulate some of the cool air to the bathroom. I also couldn't find a fan that would fit in my tiny bathroom window. These fit perfectly. I immediately tested them out. My "D" cell rechargeable Tenergy batteries were purchase around 2002-2003. They were old, well used & through a fire so suffered severe heat & steam. Rated at 10ah (10,000 mah), I'm sure as old as they are, they're only half the the power of their original new Ah rating... probably worse. Rechargeable batteries deliver almost constant current until they're just about fully discharged. So I expected full speed from the fans until the batteries were almost wore out, & that's what I got. On my very old worn rechargeable "D" cells, all 3 fans ran at full speed on high with no change for 23 hours. By 24 hours they had slowed down to about the speed they would be on the low speed with fresh batteries. By 25 hours they slowed down so much that I could only feel a breeze by putting them close to my face. So on my very old batteries who's life expectancy was exceeded many years ago, I got 24 hours of useful continuous breeze. Some say they can't feel a breeze unless they're within a foot or 2 from it. Not true. They're either using some pretty bad or worn out batteries, or got a defective one. Placed just outside my bathroom door to circulate some of the cool AC air into the bathroom, I could comfortably feel a breeze from the toilet 6 feet away. But beware this thing probably only draws a watt or less. It will not blow as hard as a 35-150 fan. It's a small portable device that will provide a mild breeze, but not from across the room. In shorts & a T-shirt it definitely felt good from as much as 6 feet away for 24 hours.

**Q: is there a way to make it blow cold air without dripping water on it?**
A: I'm pretty sure you were thinking of those condenser fans (?) that use water by creating a fine mist and as it blows air it has the ability to cool the area by 15+ degrees. Its not a dumb question. Try a personal mister in front of it (mist being directed towards you not the fan) and that will feel much cooler. That's how humans cool down, moisture (sweat)...air...
Ice in front of a fan can in fact drop the temp of the air traveling over it but you have to be close to the source or the air gets warmed again by time it reaches you.  As far as the product goes....o2cool fans are great! Best wishes

**Q: Is there an adapter that can be purchased for the 02COOL 5" Fan?**
A: Its a DC 5521 plug also the older model does have the dc plug I'm not sure if there is one without exactly. This is the plug I use to run the fan off a portable charger https://www.amazon.com/dp/B07J6NQ1KN/ref=cm_sw_r_u_apa_fab_AoPGFbC78RXG7

**Q: Is there a way to rig this for use as a tent ceiling fan?**
A: Being a tent camper and a person who likes to make things work, I would say yes, you could. It would probably have to be hung upside down with a heavy grade string or a small rope around where the battery housing connects to the fan part. I hope this idea helps.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for camp
*by S***G on June 28, 2025*

I bought this for my daughter to take to camp. Even though it was a hit week outdoors, this helped her cool off at night in the tent with her girl scout troop. It's small, portable, and doesn't require a power source. It runs on 2 D batteries (not included) which was exactly what she needed. There was no power source fir her to access on the camp site. It was perfect for airflow at night. She came home and said she loved it. 10/10.

### ⭐⭐⭐⭐⭐ The Little Fan That Could.
*by B***X on July 2, 2025*

Why did you pick this product vs others?:Would definitely recommend. Takes 2 D batteries and has 2 speeds. It’s pretty strong for its size and the battery lasted more than 6 hrs without cutting it off and still has juice. Even with batteries in, it is still lightweight and you can take it just about about anywhere. Worth the price.

### ⭐⭐⭐⭐⭐ Small fan
*by R***E on July 4, 2025*

I wanted a small fan for a recent wilderness skills class I attended. The forecast was calling for warm and humid conditions so airflow in my tent was a must. The noise level is low and didn't affect my sleep. It doesn't put out a lot of air but it was adequate.

## Frequently Bought Together

- O2COOL Treva 5 Inch Battery Powered Fan Portable Desk Fan 2 Cooling Speeds with Compact Folding & Tilt Design Cubicle Accessories Small Portable (Black)
- Amazon Basics 12-Pack D Cell Alkaline All-Purpose Batteries, 1.5 Volt, 5-Year Shelf Life

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-08*