---
product_id: 335599459
title: "O2COOL Treva 5 Inch Battery Powered Fan Portable Desk Fan 2 Cooling Speeds with Compact Folding & Tilt Design Small Fan Cubicle Accessories Mini Fan Portable (Black)"
brand: "o2cool"
price: "€ 16.83"
currency: EUR
in_stock: true
url: https://www.desertcart.ie/products/335599459-o2cool-treva-5-inch-battery-powered-fan-portable-desk-fan
store_origin: IE
region: Ireland
---

# 2-speed quiet cooling Compact foldable design Battery-powered freedom O2COOL Treva 5 Inch Battery Powered Fan Portable Desk Fan 2 Cooling Speeds with Compact Folding & Tilt Design Small Fan Cubicle Accessories Mini Fan Portable (Black)

**Brand:** o2cool
**Price:** € 16.83
**Availability:** ✅ In Stock

## Summary

> 🌀 Stay cool anywhere, anytime—because comfort shouldn’t wait for power.

## Quick Answers

- **What is this?** O2COOL Treva 5 Inch Battery Powered Fan Portable Desk Fan 2 Cooling Speeds with Compact Folding & Tilt Design Small Fan Cubicle Accessories Mini Fan Portable (Black) by o2cool
- **How much does it cost?** € 16.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/335599459-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

- • **Unplug & Chill:** Runs on 2 D batteries for ultimate portability—no outlet needed.
- • **Dual-Speed Breeze:** Choose between high and low speeds for personalized, whisper-quiet comfort.
- • **Ready for Anything:** Perfect for power outages or on-the-go cooling—stay cool when it counts.
- • **Space-Savvy Design:** Compact 5-inch fan folds flat to fit anywhere—from desk to travel bag.
- • **Effortless Operation:** Simple battery installation and tilt adjustment for instant, targeted airflow.

## Overview

The O2COOL Treva 5 Inch Battery Powered Fan is a lightweight, portable desk fan featuring two quiet cooling speeds and a compact folding design. Powered by 2 D batteries (not included), it offers cordless convenience ideal for office desks, travel, or emergency use during power outages. Its tilt adjustment and space-saving form factor make it a versatile cooling companion wherever you go.

## Description

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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | O2COOL |
| Model Number | FD05004 |
| Color | Black |
| Diameter | 5 Inches |
| Power / Wattage | 3.6E+4 |
| Voltage | 120 Volts |
| Material | Plastic |
| Auto Shutoff | No |
| Number of Speeds | 2 |
| Special Features | Foldable |
| Item Weight | 204 g |

## Product Details

- **Brand:** O2COOL
- **Colour:** Black
- **Electric fan design:** Table Fan
- **Power source:** Battery Powered
- **Style:** Traditional
- **Product dimensions:** 10.9D x 16.8W x 15.7H centimeters
- **Room type:** Office
- **Special features:** Foldable
- **Recommended uses for product:** Cooling
- **Mounting type:** Freestanding

## Images

![O2COOL Treva 5 Inch Battery Powered Fan Portable Desk Fan 2 Cooling Speeds with Compact Folding & Tilt Design Small Fan Cubicle Accessories Mini Fan 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.

## 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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.ie/products/335599459-o2cool-treva-5-inch-battery-powered-fan-portable-desk-fan](https://www.desertcart.ie/products/335599459-o2cool-treva-5-inch-battery-powered-fan-portable-desk-fan)

---

*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-08*