Mark Johnson
(Rated from 43 reviews)

Updated 07 March 2020 by Mark

* On special until end April 2020

Best Dri-Eaz F284 DefendAir HEPA 500 Air Purifier

We aim to only include great quality, great products that may assist you to discover what you really want for your lifestyle. Our analysis is honest and detailed because we want you to have all the information – both good and bad before making a decision.

Have you recently done any job that involves sewage, mold, or fire damage? Dri-Eaz F284 DefendAir HEPA 500 Air Filter explicitly removes significant amounts of particulates and smelly gasses a direct result of the accident itself.

The HEPA 500 cleans indoor air quickly and efficiently and will help restore any environment to a pre-loss condition, the ultimate goal of every restoration job. Adding to its efficiency, it helps protect persons with allergies or asthma from environmental irritants. It clears the air in areas up to 1000 cubic feet of enclosed space.

Who Is It For?

The Air Cleaner is ideal for contractors.

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Dri-Eaz F284 DefendAir HEPA 500 Air Purifier Review

Intended Use 90%
Product Rating 80%
Value For Money 90%
Price 90%

Dri-Eaz F284 DefendAir HEPA 500 Review Table

Summary It uses HEPA room air filter media with an efficiency rating of 99.97% against 0.3-micron oily aerosol particles.
Product Rating 9.00/10 whole house air purifier used with the optional DOP 2nd stage filter provides assurances for the first-pass filtration.
Intended Use 9.00/10 An air purifier for all indoor air quality needs.
Value for Money 9.00/10 Great value for money considering it is long lasting.
Price 8.00/10 A low-priced room air purifier.

Quick Summary

Filter out dust, mildew, mold and other particles kicked up during remodeling, water damage cleanup and cleaning projects.

This contractor-grade air scrubber clears the air fast and especially helps prevent problems for occupants with asthma or allergies.

We Like

Captures particles in crawlspaces and damp areas where mildew or mold can grow. It removes dust quickly during remodels and reconstruction. Easy to use 2 stage filters for different air cleaning problems. Long power cord.

We Don’t Like

The product is a bit noisy at any power setting.

What It Includes:

  • Portable air scrubber.

  • Negative pressure machine.

  • First stage standard paper pre-filter.

  • Second-stage primary HEPA filter.

  • Auxiliary power outlet.

Key Features

Portable Air Scrubber

99.5% of particles filtered to 0.003 Microns, the world’s smallest particle.

Negative pressure machine

Has an 8″ air outlet that fits Dri-Eaz rigid engineered ducting.

First stage Standard paper pre-filter

The unit’s standard paper pre-filter captures large particles.

Second-stage HEPA Primary filter

It captures 99.97% of remaining particles down to 0.3 microns.

Auxiliary power outlet

Allows users to connect up to three units together for combined air flow speeds of up to 1500 CFM.


  • Unit Weight: 44 Pounds

  • Shipping Weight: 48 Pounds

  • Manufacturer: Dri-Eaz

  • Product Dimensions: 19 x 27 x 25 Inches

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Dri Eaz F284 Defendair Hepa 500

Results You Will Get

The optional activated Carbon home air filters allow users to quickly and efficiently attack smoke and other noxious odors in the environment. The purified air will be free of smoke, allergies, and asthma.

Customer Reviews

During writing this review, there were a total of 28 customer reviews and no answered questions on Amazon for the room air purifier with an average rating of 4.3 stars out of 5. Customers loved this product because of the easy assembly and efficiency in air purification.

A few customers summarized the experience and wrote, “Seeing as how it worked so well I’ll be hanging on to this for when we do any extended time in our basement or for the rest of the remodeling we need to do. The product is a bit noisy, but it works efficiently.”

Pros & Cons


  • Captures particles in crawlspaces

  • Long auxiliary power cable

  • Removes dust quickly

  • Easy to use


  • A bit noisy


If you feel like you are not satisfied with the product, feel free to check out Dc 12 Home Auto and Gt50 Professional Review. They have similar features, but this product will capture particles in damp areas.

Also you should check our article on the Best Air Cleaner.

Insider Information

When working in heavy dust environments, extend the life of the HEPA air filter home device with a second pre-filter.

Our Verdict

Dri-Eaz F284 DefendAir HEPA 500 Air Purifier discount offers more than its value for money. We would recommend it as the essential contractor’s tool.

With this price, which is the most reduced it is ever been, you shall save a ton of money. Ensure that you check out the link below for the ultimate cost savings.

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