The Best Whole House Air Purifiers in 2024

We pride ourselves on being experts on all things that protect your home and ensure that you live in a safe environment. That includes the air that you breathe! We strongly believe that you should have the whole house air purifiers in your home to ensure that the air is free of toxins and pollen.

We’ve poured over the latest research and looked at hundreds of whole-house air purifier reviews to find the seven best options that you can purchase today. When we analyzed the whole house air purifiers on the market we looked at things like the size of the air purifier, the airflow, room coverage, and the type of filtration the unit uses.

You don’t want to purchase a sub-par whole-home air purifier. These units can be expensive and if you’re not buying the best on the market, you’re wasting your money and exposing your loved ones to allergens and toxins that are easily removed.

After reading this article, you’ll have the tools to decide which features are must-haves and which of these units is the best for your home.

Best Whole House Air Purifiers:

1. Coway Airmega 400(G) Smart Air Purifier True HEPA Air Purifier with Smart Technology


Conway’s Airmega 400 Smart Air Purifier is a top-rated whole-house air purifier that cleans indoor areas that are up to 1,560 square feet. The feature that makes this one of the whole-house HEPA air purifiers is its special Airmega Max2 filter. This filter combines a True HEPA filter with activated carbon that catches 99.97% of particles in the air including allergens, pollen, and other pollutants.

This filter is top-of-the-line and is so powerful it reduces fumes and 99% of volatile organic compounds floating in the air. It also includes a washable filter that catches larger particles including dust.

To prove how powerful this filter is, the Airmega 400 comes with a pollution sensor that gives you constant updates on the status of the air quality in your home. The bright LED ring shows if the air is clean or dirty every minute. It never turns off.

The Airmega 400’s fan has five modes, including smart, sleep, low, medium, or high. If you place the unit on smart mode, the purifier will automatically adjust the fan speed based on how clean or dirty the air is in the room. Regardless of what level it is at, the fan is very quiet, creating a max noise of 43.2 dB at its highest speed.

With a timer that runs for either 1, 2, 4, or 8 hours, you can turn the unit on and go do other things. There is also an indicator light for the washable pre-filter and Max2 filter, so you know when to change them.

This unit is available in graphite or silver, so you can choose what looks best in your home. The Airmega 400 is Energy-star certified and uses just 64 watts of energy. It will clean the air in a large room twice an hour.

Customers say that after using the air purifier for just a few days they notice a difference in their health. They report that they don’t have scratchy throats. Customers say that the indoor air felt clean and made them feel refreshed.

The AirMega 400 Smart Air Purifier is one of the whole-home air filtration systems that you can purchase. It is intelligent, letting you know when you need to change your air filter and even adjust its fan speed based on the air quality in your room. If you purchase this air filter, it is money well spent.


  • A limited manufacturer warranty covers any internal problems for one year and also covers the motor and electronic parts for five years
  • The filter is so strong it also removes organic compounds and fumes
  • Available in two attractive colors
  • Fan speed automatically adjusts based on the room’s air quality
  • The pollution sensor gives you stats on air quality in real-time


  • The filter is not included
  • The strong plastic smell when the unit is new and used for the first time

2. Alen BreatheSmart Classic H13 HEPA Air Purifier, Air Purifiers For Home

The BreatheSmart HEPA-Pure filter is one of the whole-house air purifiers for allergies. Within just days of turning this unit on, you’ll notice a dramatic increase in the quality of air in your home. When reading whole house air cleaner reviews online, you’ll find that this unit tops nearly every single list.

Within just two hours, this powerful little unit will clean the air in your entire home. It’s great for open-concept homes, especially those that are under 1100 square feet. BreatheSmart’s HEPA-Pure filter is extremely good at removing allergens, pet dander, and dust from your home. You’ll notice a change almost immediately!

The filter is not only effective, but it is also quiet and efficient. It is extremely quiet and creates a soothing white, pink, or red noise that can help lull you to sleep.

You can use the auto-mode to clear the air in your home all day long. Plus this filter is ozone-free, so there are no health risks to your family by leaving the unit on indefinitely. The unit is also energy-efficient, using just 105 watts of energy when on the turbo setting.

One customer says that after owning BreatheSmart for about 2 months, he and his wife couldn’t be happier. They live in a condo and placed the unit in such a way that it can pull the air from both large rooms at the same time. They noticed after only a few days how the amount of dust on the furniture diminished!

The Breathesmart Classic is the air filter to remove dust from your house. This is your go-to air purifier for large rooms or open-concept homes. You’ll instantly notice a difference when this unit is on and you don’t have to worry about turning it on and off thanks to its auto-mode.


  • Comes in 14 different color options
  • Fully customizable
  • Helps reduce the amount of dust in your home
  • Can help resolve health issues like congestion and allergies within days
  • Alen offers a lifetime warranty on this purifier


  • Customer service is not responsive to complaints

3. Rabbit Air BioGS 2.0 Ultra Quiet HEPA Air Purifier

If you’re big into researching the whole house air cleaner reviews, you’re probably very familiar with RabbitAir’s BioGS 2.0 HEPA purifier. That’s because it is one of the best on the market! Keep in mind, that while this unit is extremely powerful, it is only made for small rooms that are up to 625 square feet. It will clean the air twice in one hour when it is in the highest setting.

This unit is fully automated and its BioGS HEPA filtration system goes through four stages of purification and deodorization. This and the charcoal-based activated carbon filters last up to three years (based on 12 hours of use each day).

The motor is very quiet and runs at five different speeds. While the motor is nearly silent at a low speed, it can be a bit loud when running at a high speed. Regardless of how fast the motor is running, keeping this unit won’t make your energy bill sky-high. The BioGS purifier is Energy Star-certified.

When scientists were designing this unit, they made a point to ensure that it was environmentally friendly. Because of that, this air purifier emits less light and sound pollution than others and leaves nothing but clean air in return.

This purifier is quite smart too. To save energy and reduce light pollution, all of the outside-facing lights will disappear when the unit is idle. Plus, the filter has an indicator that lets you know when it’s time to clean the filter or change it.

Customers say that this unit is impressive, especially given the price. However, they want others to note that the CADR (clean air delivery rate) is lower than some other purifiers and that the unit is not intended for large rooms.

Not only is the RabbitAir BioGS air purifier powerful and efficient but it also is backed by a five-year warranty. You can also feel good knowing the unit has won tons of awards, including the Germany Red Dot Award, Good Design Award by Chicago Athenaeum, and Japan Good Design Award.


  • Eliminates odor and reduces dust
  • Top-notch customer service
  • Environmentally friendly
  • Fully-automated
  • Backed by a 5-year warranty and 24/7 customer support


  • Not as quiet as other units
  • Doesn’t remove or eliminate mold and mildew

4. Ivation Ozone Generator Air Purifier, Ionizer & Deodorizer


Ivation’s Ozone Air Purifier is the whole house air purifier for mold. It is quiet yet powerful. Thanks to the power of ozone, the air in your home doesn’t just smell cleaner, it is refreshed, and pollutants are eliminated.

The Ivation Air Purifier releases negative ions into the air. They latch onto and expel harmful airborne pollutants and remove strong smells from your home as well. If you look at whole-house air purifier reviews, you’ll consistently see this unit as a top choice. It cleans the air in homes as large as 3,500 square feet. That means this unit will likely purify the air in your entire home!

For control of dust and mold, keep this purifier running constantly. You’ll notice a huge difference in the quality of air in your home. As previously mentioned, the activated oxygen that is pumped in from the ozone purifier removes extremely strong smells like cigarette smoke and odor from paint, chemicals, and pets from the air you’re breathing.

Besides all of that, this unit is quite attractive. It is made of elegant cherry wood and stainless steel, so that means it will last for a very long time. Unlike a simple filter, the two-in-one ionizer and odor remover will completely refresh the air in your home.

Customers say the unit works just as well as more expensive models. The only complaint that they have is that the ozone generator is way too strong even on the lowest setting.

When looking for a whole-home air filtration system, you’d be wise to keep Ivation’s Ozone Generator and Air Purifier at the top of your list. This unit uses advanced ozone and ion technology to scientifically clean the air in your home.


  • Stainless steel construction
  • Great at removing household mold and other pollutants
  • Activated oxygen from the ozone generator helps purge your home of foul smells like pet odor, chemicals, and even smoke or marijuana residue in the air
  • Requires less power than comparable models


  • Some say the use of ozone makes this an unsafe product as there are some potential health risks caused by ozone

5. Honeywell HPA300 HEPA Air Purifier for Extra Large Rooms

If you struggle with allergies, you know how important it is to have a trustworthy, powerful air purifying unit in your home. Depending on how much you struggle, you might even want to have a purification system in your bedroom to help you sleep at night or perhaps in your office. This is the perfect unit for all of that!

The unit is available in multiple sizes, including an extra-large unit that services rooms up to 465 square feet.

Honeywell’s True HEPA allergen air purifier captures up to 99.97% of pollutants and allergens in the air, catching particles as small as .3 microns. As a bonus, the HEPA filter also captures germs, odors, and pollutants. This unit also has three air cleaning levels, including a turbo clean setting to quickly refresh the air before a party or after a foul smell enters your home.

The motor is both quiet and efficient. Many customers report that it gives off a comforting white noise that makes it easier for them to relax and sleep.

Customers love this purifier. One customer said that over the past 20 years, he’s owned many different units and almost all of them were manufactured by Honeywell. While all had the same basic functions and worked quite well, this unit is by far the best and quietest air filter that he ever owned.

The Honeywell brand speaks for itself. They put out products that are reliable, powerful, and efficient and stand behind the products that they make. While this HEPA allergen remover is on the smaller side, people love this product. If you look at whole-house air filtration system reviews, this unit from Honeywell will be at the top of nearly every list!


  • 5-year limited warranty
  • Uses certified HEPA filters from Honeywell
  • Filters and circulates the air up to five times an hour
  • Comes with an extra-thick charcoal filter
  • Produces a pleasant white noise
  • More affordable than other units on the market


  • Some people report smelling a chemical odor when the unit is on
  • Customer service is not responsive to customer concerns

6. Greentech Environmental pureAir 3000 – Portable Air Purifier and Air Cleaner

The pureAir 3000 Whole Home Air Purifier will completely transform the air in your home. It does this not by simply processing the air that comes in and out of the unit but by removing the sources of pollution and cleaning the air and surfaces of your home.

This air purifier is incredibly powerful. It cleans the air in up to 3,000 square feet of living space. This air purifier copies the way that nature cleans the air. It refreshes the old air in your home, removing odors and creating clean, fresh-smelling air that will make you feel like you’re living in the mountains. If you smoke in your home or find that you’re constantly dealing with heavy odors, it is highly recommended that you purchase this purifier. While most people choose to freshen their air with sprays or perfumes, this provides a healthy way to clean the air in your home.

Besides removing odors from the air, this purifier also removes dust, pollen, mold, mildew, and even common viruses and bacteria that float around in the air. It uses four kinds of air purification technology to stop the growth of fungi, germs, and bacteria. Many people who struggle with allergies choose to use this product because it significantly reduces the symptoms they feel like scratchy throats, watery eyes, and sneezing.

Customers say they love this air purifier. They say that it runs constantly and that their house smells clean. Even with multiple big dogs, there is no pet smell. Customers also think that they are healthier because this air purifier cleans up germs and makes for a healthier environment.

Whole House air purification system reviews constantly feature pureAir’s 3000 Whole Home Air Purifier because it does such a great job of removing dust and other allergens. While you do have to watch out for potentially high ozone levels in your home, you also will see some of the air quality in your home with no dust mold, or smells.


  • Easy to set up and easy to use
  • Completely removes strong smells like tobacco or smoke
  • Cleans a large area of air
  • Uses ozone to pump fresh oxygen into your home


  • Some report an odor when the unit is first turned on
  • You must be careful with how long you keep this unit on since ozone can cause health issues

Tips on Choosing

Choose an Air Purifier for the Whole Home

Make sure that you are choosing a purifier that will clean the air in your whole home. If you are choosing a unit that only cleans an area smaller than your home, you won’t notice results and will likely still see dust and experience allergy symptoms.

Decide what filter is best for you.

HEPA filters are widely regarded as some of the best in the industry as they capture even the most minute pathogens and particles in the air. Ozone filters are extremely powerful at cleaning the air, but they can be harsh and cause nausea if you’re home while the system is running.

The Volume

Know how loud the unit is. Especially if you’re planning on keeping the unit in your bedroom, you’ll want to make sure it either emits a white noise or is very quiet.

The brightness of the lights on the unit

Additionally, consider the lights on the unit too. They might keep you up if they are very bright!

Factors to Consider

There are many features that you can get on your air purifier but depending on how much you want to spend and how large your home is, you can save some money by purchasing a unit with only the features you need. Consider how much you need the features below.

Smart Technology

Many units are now controlled by your smartphone or Bluetooth. While this is a neat feature, it can severely increase the price of the unit you buy.


Can the unit stay on continuously? Will it turn off when the air is completely clean or slow the fan speed when necessary? If you plan on using your air purifier continuously or when you’re not home, you’ll want to buy a unit that can function without direction from you.

Air Quality Sensors

While most filters come with guidelines to let you know how frequently you need to change them, it is easy to forget to do that. If your air purifier has a filter indicator, you’ll always know when to change the filter and you can ensure that your home will have the cleanest air possible.

Energy Star rated

Especially if you’re considering leaving your purifier on all the time, you’ll want a unit that is energy efficient. An easy way to ensure that it is would be to choose a unit that is Energy Star-rated.


Why Do I Need a Whole House Air Purifier?

Most people get sick or have allergies and turn to medications to fix their issues. They don’t realize that the problem might be the air in their own homes!

Mold, mildew, and bacteria are constantly floating around in your air, just waiting to get into your body. Using medication will only put a band-aid on the problem.

By using a whole-home air purifier, you’ll remove these pathogens from the air and also stop their growth entirely.

In addition to that, pet owners and smokers might notice harsh smells in their homes that are extremely difficult to remove. If you simply use surface-level chemicals, the smells will remain. Using an air purifier will completely solve this problem for you.

What size air purifier do I need?

First, determine how large your home is. If you just purify one room in your home, you’re going to be fighting a losing battle.

You need a purifier that can take care of the air in your entire home so you’re fighting back against pollen, dust, mold, and more.

In this article, we’ve specifically highlighted the airflow that each unit can cover. For some, it’s a small area of 100-400 square feet.

Others can handle more than 3,000 square feet. If you have an apartment, a smaller unit might suit you. However, know that the larger your home is, the larger the unit you’ll need.

Where do I put my air purifier?

If you’re buying a whole-house air purifier, you typically don’t have to worry about where to put the air purifier. It will connect to your HVAC system that is already in your home. It will clean the air as you heat or cool your home down.

However, some models do sit inside your home. You might choose this because it is less expensive than getting a purifier that connects to your HVAC system.

If this is the case, it is recommended that you put the unit in the room that you are in the most, perhaps the living room or even your bedroom.

Making The Decision

After reading this article, you’ve got more than enough information and education on how to choose the whole-house air purifier for your home.

An air purifier will help you significantly improve the health of those living in your home and will make your home a safer, more enjoyable place to be, so it is a necessary purchase. It is also not one to be taken lightly.

After reading these whole-house air purifier reviews, we hope that you’ve been able to select a unit that is good for your home and within the parameters of what your family is looking for to improve overall health.

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