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Cleaner Air, Right in Front of You

Provide your employees, customers, and guests with peace of mind comfort.

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Key Benefits Include:

Click on the numbered icons below to explore AirSure Air Purifier product features.

Feature 1: High-efficiency filter

Feature 2: Ultra-lightweight design

Feature 3: Whisper-quiet fan

Feature 4: Multiple power options

Feature 5: Two power levels

Feature 6: Easy-to-replace filter

Whether coughing, sneezing, talking, or just breathing, humans transmit liquid particles or aerosols so small, they can linger in the air in front of you for over an hour!1

AirSure technology

Exclusive Three-Sided Air Flow Intake and Filter

A uniquely designed air flow intake and filter helps to capture up to 99% of airborne particles as small as 0.3 Microns - or 5/1000s of a strand of hair.

Video dramatized for illustrative purposes only.

DF2 capture particles

Capture Human Transmitted Airborne Particles Where They Happen

Unlike larger, room-sized air purifiers, AirSure is specifically designed to be used right in front of you. AirSure is not meant to replace room air purifiers, but to be a companion to them. From conference rooms to retail checkout counters and reception desks to health and beauty servicing, AirSure is ideal for use any place people meet face-to-face.

See AirSure in Action

 AirSure in action

Provide Your Employees and Guests with Peace of Mind




Meeting Rooms

Nail Salons

Reception Desks


Application Use
Close contact, face-to-face discussions
Air Flow Intake
Three-sided large air intake
Air Flow Exhaust
Two (2); one on each side pushes air away from you
Filter Efficiency
Captures airborne particles as small as 0.3 Microns at a 99% efficiency
Filtering Rate
Cleans the air right in front of you at a rate of 15ft3/minute. 2
Power Source
Supplied USB-C cable and AC power adapter
11.8" W x 3.9" H x 2.9" D
1.2 lbs.
Fan Settings
Three (3); High, Low, and Off
Security Lock Capable
Compatible with many locks available in the market
Replacement Filter
Model FH-221

AirSure DF-2 FAQs

Browse our FAQs below to learn more about the AirSure DF-2 Air Purifier.

No, the AirSure DF-2 is not considered to be a HEPA Filter. HEPA Filters remove at least 99.97% of particles as small as 0.3. The AirSure DF2 removes particles as small as 0.3 microns up to a 99% efficiency rate.

No, the AirSure DF-2 is not intended to be used as a measure against any disease, it is simply intended to help purify the air in close contact environments.

The life of the filter is about 3 months (calculated by using for 6 hours a day on any power level). The life may be shortened depending on many factors, including but not limited to, strongs odor such as tobacco, the amount of dust, the time of use, and the environment of use.

The AirSure DF-2 is slightly above a soft whisper, less than 45db.

  1. Move the Power Switch to "OFF".
  2. Unplug the USB-AC adapter.
  3. Push the latch to open the top cover.
  4. Hold the handles on both side of the old filter and pull up to remove it. Make sure that dust does not fly off the filter when removing it. Dispose of the filter properly.
  5. Install the replacement filter by lowering it into the air filter.
  6. Close the top cover, ensuring that the latch fastens securely.
  7. Write the filter installation date on the filter replacement sticker and stitch it to the to cover.

Turn the main unit off and unplug the USB-AC adapter from the outlet. Use a vacuum cleaner nozzle to absorb dust that has adhered to the area around the main unit or wipe it lightly with a soft cloth.

With the included A/C adaptor and USB-C power cord, you can plug it into a wall outlet or use with any standard USB port like a laptop.

If you are having a machine malfunction, please refer to the DF-2 support page. Here, you can find contact information for Brother Customer Service, where you can get assistant from 9am to 9pm Eastern, Monday through Friday, excluding holidays.

The AirSure DF-2 has a 1-year limited warranty.

While there is currently no indicator on the AirSure DF-2 to notify you when to change the filter, we encourage you to register your AirSure DF-2 with Brother so we can send you a reminder when it's time to replace the filter..

Replacement stickers are not available for order, but we encourage you to register your AirSure DF-2 with Brother so we can send you a reminder when it's time to replace the filter.

Change My Filter Reminder

Register your product with Brother and we will send you a reminder to replace your filter.

Need Additional Help?

Find support options and ways to contact Brother for help with the AirSure Air Purifier.

  1. Centers for Disease Control and Prevention. (2022).
  2. Based on internal tests performed in a controlled environment