In this buying guide, we’re going to be looking at the GermGuardian AC4825 Air Purifier, and the Dyson HP04 Air Purifier.

GermGuardian vs. Dyson

GermGuardian AC4825

We’re going to look at the features and attributes of these two air purifiers, and by reading this guide, you’ll learn what these two air purifiers offer and which one is right for you.

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What Does The GermGuardian AC4825 Air Purifier Offer?

To start off, we have the GermGuardian AC4825. This is a very basic air purifier that is designed for spaces that are no larger than 167 square-feet. If you have a small room – a bedroom or living room, for example – that you would like to purify, then this is an excellent air purifier for that task.

To use this air purifier, all you need to do is find a good spot for it to be at, and then you need to plug it in. When you plug it in, you have access to several different air purification modes. Using the different air purification modes that you have access to, you’re able to determine the speed of the air purification.

GermGuardian AC4825 Review

GermGuardian AC4825

One thing to remember is that the higher the air purification speed, the louder the air purifier will be. That’s why there is an “Ultra-Quiet Sleep Mode”, for when you want to sleep.

When you turn on the air purifier and choose a speed, air will begin flowing into the air purifier. All of the air that flows into the air purifier will flow through several different purification mechanisms. To start off, air flows through a Pre-Filter, which removes the largest particles from the air. And then, right after that, air flows through a Charcoal Filter, which eliminates bad smells and odors.

Once air has passed through those basic filtration mechanisms, it then goes through a True-HEPA Filter. With the True-HEPA Filter, all of the really small, but nasty, allergens are eliminated. And, after that, you can turn on a UV-C Light which will remove the remaining particles, especially things like allergens and viruses. But, you don’t need to use the UV-C Light if you don’t want to.

Ultimately, the GermGuardian AC4825 is an excellent air purifier if you are looking for something that’s great for small spaces, and is super affordable and quite powerful.

GermGuardian AC4825

What Does The Dyson HP04 Air Purifier Offer?

In great contrast to the previous air purifier, the Dyson HP04 is incredibly expensive. This is an air purifier that is designed for people who want the best of the best, in terms of design quality and efficiency.

Dyson HP04 Air Purifer

Dyson HP04

Using this air purifier, you are able to purify rooms and spaces of all sorts. This is an excellent air purifier for large spaces that need to be purified.

What’s really nice about this air purifier is that it isn’t just an air purifier; it’s also a fan and a heater. This extra functionality adds a lot of value to the air purifier, and makes it easier for you to perform all of those functions, without needing to buy any extra devices.

When this air purifier is running, it sucks in air from all across the room that it’s in. This is accomplished using a design that allows for air to come in through the entirety of the design, rather than a single opening that is constrained to one part of the device.

Dyson vs GermGuardian

Dyson HP04

While air flows into the air purifier, it passes through various filtration mechanisms. These are mechanisms that allow for allergens, germs, and viruses to be removed.

The main mechanism that this air purifier uses is a Sealed-HEPA Filter, and this filter is very well-designed, which allows for it to remove all of the small and nasty particles that are floating around within the air.

Once the air has passed through those mechanisms, it flows out of the air purifier and into your home. And, this happens very quickly, due to the speed and efficiency of this air purifier.

What’s really nice about this air purifier, aside from the design and power that it offers, is the fact that you can access all of the features, modes, and settings using your smartphone. No matter where you are, you have access to the settings and features of this device, which makes it easy to tailor the experience to what you need.

If you are looking for great quality, and don’t mind paying some big bucks for it, then the Dyson HP04 is a fantastic air purifier that will serve you well!

Dyson HP04 Air Purifer Review


Ultimately, the GermGuardian AC4825 and the Dyson HP04 are both great. For a simple air purification experience, the GermGuardian AC4825 is ideal. But, for something that is far more elaborate and advanced, the Dyson HP04 is simply the best choice!

Recommended Affordable Air Purifiers
Best of the Best! Budget Pick Also Great
Coway Airmega 300 Smart Air Purifier with 1,256 sq. ft. Coverage Germ Guardian True HEPA Filter Air Purifier for Home, Office, Bedrooms, Filters Allergies, Pollen, Smoke, Dust, Pet Dander, UV-C Sanitizer Eliminates Germs, Mold, Odors, Quiet 22 inch 3-in-1 AC4825 Coway AP-1512HH Mighty Air Purifier with True HEPA and Eco Mode in White
Coway Airmega 300 Germ Guardian AC4825 Coway AP-1512HH
1,256 sq. ft. Coverage
True HEPA filter
167 sq. ft. Coverage
True HEPA filter
361 sq. ft. Coverage
True HEPA filter
300 Dust | 340 Pollen | 310 Smoke
118 Dust | 125 Pollen | 108 Smoke
246 Dust | 240 Pollen | 233 Smoke

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