AirWash® Whisper HEPA Filtration System

AirWash® Whisper HEPA Filtration System

“Safely solves your indoor air quality concerns, and leaves behind NOTHING… but good, clean, breathable air!”

Available in 350 CFM and 675 CFM options.

SKU – 350 CFM: hk8914
SKU – 675 CFM: hk8915

***See more information on Air Filtration and the Coronavirus (SARS-CoV-2)

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Product Overview

Hawk’s AirWash Whisper® is the industry go-to for all residential and commercial spaces.

Benefits of the AirWash® Whisper

  • Environmentally friendly!
  • 3-stage filtration
  • Energy efficient
  • Bypass design
  • Its own motor
  • Won’t void warranties
  • EASY to install

Download the AirWash® Whisper Specification Sheet for more information.

Perfect Seal® HEPA

  • Smart 360° cylindrical design
  • 99.97% HEPA efficiency
  • 100% leak-proof seal
  • Washable foam pre-filter
  • Activated carbon canister for VOC

High Efficiency Particulate Arrestance (HEPA) is a filtration standard set by the US Atomic Energy Commission.

The AirWash® Whisper releases NOTHING back into your air. Know the facts!

The United States Environmental Protection Agency warns that “some air cleanign technologies may emit potentially harmful by-products during operation.” By-products like carbon monoxide, formaldehyde and ozone. “…ESPs, ionizers, uncoated UVGI lamps, and products that advertise the use of ‘plasma’, ‘ions’ and other similar terms — can generate high amounts of ozone. Ozone is a well-documented lung irritant.”

  • No Carbon Monoxide
  • No Formaldehyde
  • No Ozone

The Hawk Environmental family of companies has teams of inspectors servicing 38 states, certified in air quality and hazardous materials testing.

Proven Science, not Rocket Science!
The Hawk AirWash® Whisper

What’s In the Box?

  • Hawk Environmental AirWash® Whisper HEPA Filtration System
  • HEPA Filter
    • Foam Pre-Filter
    • Inner Carbon Filter
  • Registration Card
  • Owner’s Manual

Manufacturer’s Warranty

1-Year Warranty

Manufacturer’s Literature


Product Options

350 Max CFM, 675 Max CFM


350 CFM: C3-T-1KME-00, 675 CFM: C4-T-1KME-00

Manufacturer-Suggested Room Size

Whole House

Wi-Fi Capable


Amount of Air Moved (Max CFM)

350 CFM or 675 CFM

Number of Fan Speeds


Pre-Filter Type

Expansive Foam

HEPA Filter Type

True HEPA Cartridge

Ozone Emission


Number of Filters to Change


Pre-Filter Replacement

3-4 Months

HEPA Filter Replacement

24-60 Months

Carbon Filter Replacement

6 Months

Amount of Carbon

1/2 inch thick in cylinder

Filter Change Indicator




Remote Control





350 CFM: 1 Amps, 675 CFM: 1.8 Amps

Minimum Wattage

350 CFM: 125 W, 675 CFM: 225 W


110-120 V


27.5 in.


14.5 in.


14.5 in.


350 CFM: 30 lbs., 675 CFM: 33 lbs.

Air Purifier Type

Whole House


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