9.2 / 10.0

Milwaukee 0821-20 M18 18V 18" Brushless Cordless Fan - Bare Tool Review

Published October 19, 2025 • 8 min read • 2 views

Overview

The Milwaukee 0821-20 M18 18V 18" Brushless Cordless Fan is a powerful and versatile tool designed to provide efficient air circulation in various work environments, making it an essential piece of equipment for any professional. This fan excels with its brushless motor technology, providing reliable performance without the need for cords.

What's In The Box

  • Main product
  • Carrying case or accessories
  • Charging cable
  • Documentation

Technical Specifications

Blade Size 18 inches
Motor Type Brushless
Speed Range Variable speed control
Airflow Rate Up to 13.5 MPH
Battery Capacity 18V M18 system compatible battery required (not included)
Runtime Varies based on usage and battery type

Design & Build Quality

The Milwaukee 0821-20 M18 18V 18" Brushless Cordless Fan boasts a sturdy construction with high-quality materials that ensure durability and longevity. The fan's ergonomic design allows for comfortable handling, even during extended use. Its compact size makes it easy to transport and store on the job site.

Performance

In real-world applications, this fan performs exceptionally well in both cooling and drying scenarios. The variable speed control dial enables users to adjust the airflow according to their specific needs, whether for rapid air circulation or a more gentle breeze. Its impressive reach of up to 50 feet ensures that it can effectively cool large areas.

Key Feature Analysis

One of the standout features is its ability to deliver corded performance without being tethered, offering unparalleled flexibility on job sites where cords would be a hindrance. The brushless motor technology not only enhances efficiency but also prolongs battery life compared to traditional motors.

Battery Life

The fan's battery life is commendable, although it varies depending on the speed setting and the type of M18 system battery used. Users can expect significant runtime for continuous operation without needing frequent recharges, making this fan ideal for extended work sessions.

Pros & Cons

Pros

  • Powerful airflow up to 13.5 MPH
  • Variable speed control dial for versatility
  • Brushless motor technology for efficiency and durability
  • Compact design with ergonomic handling
  • Up to 50-foot reach

Cons

  • Requires separate purchase of M18 system battery
  • No water reservoir included, limiting its use as a misting fan
  • Loud operation at high speeds compared to some competitors
  • Not suitable for indoor dust collection or filtration

Final Verdict

As an all-around performer, the Milwaukee 0821-20 M18 18V 18" Brushless Cordless Fan is a reliable choice for professionals requiring efficient air circulation on job sites. It offers robust performance and flexibility while maintaining high build quality.

Who should buy: Ideal for construction workers and other professionals needing portable, powerful fans without the constraints of cords.

Who should skip: Those looking for misting capabilities or quieter operation at higher speeds might want to explore alternative options.

9.2/10
Milwaukee 0821-20 M18 18V 18" Brushless Cordless Fan - Bare Tool Review

Where To Buy

$249.99

Milwaukee 0821-20 M18 18V 18" Brushless Cordless Fan - Bare Tool

Prices may vary

Ready to Buy?

$249.99

Prices may vary by retailer and configuration