5 Best Air Purifiers to Buy for Large Rooms in 2024

5 Best Air Purifiers for Large Rooms

Are you looking for a decent air purifier for your home or boardroom? In a market with hundreds of brands, one requires knowledge on how to identify the best products. You need this information to help you get value for money.

Let’s have a look at the best air purifiers for large rooms. You might want to bookmark this article for future reference.

Tip: The Best Air Purifier Buyers Guide!

5 highly rated air purifiers for large rooms

1. SilverOnyx 4-in-1

Why is this air purifier a 4-in-1? Because it contains an unmatched filtration system that provides you with 99.9% purity. This system consists of activated carbon, a pre-mesh filter, H13 HEPA filter, and an ion generator.

In our previous post on the differences between air purifiers and dehumidifiers, we explained the four different types of purifiers. The difference lays in the air purification filters. HEPA ranks among the best because it traps solid impurities, smoke, and toxic fumes.

Floating particles of dust cause eye and nose irritation. The pre-mesh filter does a good job in trapping feathers, hair, and dust particles in your living space. It’s also easy to clean as long as you have the right set of screwdrivers.

The Silver Onyx 4-in-1 generator eliminates bad odors fast thanks to its activated carbon, H13 HEPA, and ion generator filters. HEPA filters contain microns that are too small for tobacco smoke molecules to penetrate. Activated carbon filters are highly porous to ensure that they absorb smoke or odors present in the air.  An ion generator attracts odor molecules using electrical charges. You may also want to check out our whole house air purifier reviews for a large coverage area.

The Silver Onyx 4-in-1 is just 16.8 inches tall. It’s simple to use since all buttons are contained inside a circular menu. Most organizations love this air purifier because it’s suitable for rooms ranging from 500-600 square feet. It performs silently on low levels but gets noisy when one turns up the performance.

2. AERAMAX 200

One of its biggest selling points is its ability to indicate the quality of air in your home or office. The AERAMAX 200 is ideal for spaces ranging from 300-600 square feet. Its sleek design makes it quite appealing. It’s 25 inches tall and has a width of 16 inches. The AERAMAX 200 has a similar black and white design to the DX95 model.

This air purifier is highly popular among college students because it fits nicely inside apartments. It’s almost the same height as a coffee table and hums moderately at high performance. Customers who own this unit don’t incur expensive electricity bills due to superior power-saving features.

You can program this unit using various functions on the touch screen panel. Here, you can control the fan speed, switch on the automated mode, and check the sensors. It also allows you to set ON and OFF times to help you save power when you’re not at home.

The AERAMAX 200 is also popular among people living with Asthma due to its effectiveness in eliminating a variety of triggers. Its filtration system consists of activated carbon and HEPA filters treated with antimicrobial solutions. You’ll find such filtration systems in hospitals.

Cleaning and maintaining the filters is a piece of cake. Why? Because you don’t need a set of screwdrivers or special tools to access the filtration system. Simply pull out the tray of filters attached to the side and you’re good to go.


If you suffer from Asthma and also have pollen allergies, then you need to consider the GermGuardian AC9200WCA. Why? Because it contains a 3-in-1 air filtration unit. Inside, you’ll find activated carbon and HEPA filters treated with antimicrobial solutions. It also features a special ultraviolet (UV) light that zaps bacteria, mold spores, and viruses.

These filters have a high absorption rate for smoke and chemicals. All odors pass through the layer of activated granular carbon before HEPA filtration. This is necessary because some air fresheners contain high concentrations that can trigger Asthma attacks.

In order to ensure that you maintain a constant supply of purified breathing air, this unit comes with a filter replacement reminder. You’ll need a new set of activated carbon and HEPA filters after six months. It’s just $200 dollars for each replacement.

If you’re set to return home after a long business trip, you don’t need someone to activate the unit before your arrival. The GermGuardian AC9200WCA allows remote control through WIFI connectivity. You can also use Amazon’s Echo. When you’re in the living room or kitchen, you can use the Bluetooth function to control fan speed, activate your timer, and other features.

Do you need a large space for this air purifier? No, you don’t because this unit is just 28 inches tall. It occupies almost the same space as a typical stool. It’s also highly portable and doesn’t require special handling.

4. Honeywell HPA300

The Honeywell HEPA 300 is ideal for rooms ranging from 300-465 square feet. It stands at 20 inches tall and has a width of 10.8 inches. At the top is a narrow rectangular panel containing different controls. This unit is highly popular because buyers get a five-year warranty for a unit that costs $240.

Just like the AERAMAX 300, this unit has a filter replacement reminder. The light at the rectangular panel changes color once your filters get clogged. Even though the normal duration is 6 months, you might do replacements earlier when you’re living in a very dusty environment. For instance, residing near a busy construction site since dust and cement particles are airborne.

You’ll notice three different modes; Germ, General cleaning, and Allergen. The general cleaning mode is suitable for eliminating any cigarette smoke present in your living spaces. You might need to increase your T.V or radio’s volume when switching your Honeywell HPA300 to general cleaning.

During summer, you can eliminate pollen allergies by switching to the Allergen level. For higher and longer performance, you’ll activate the turbo mode. It enables your unit to deliver maximum output for 24 hours. However, you cannot answer the phone due to loud noise emitted by the fan.

This unit contains three sets of HEPA filters beneath a thick pre-filter mesh. You’ll notice a button on the left and right side at the top. Pressing both buttons simultaneously detaches the front grill. This enables you to remove your pre-mesh filter and clean them together with the HEPA filters.

5. BlueAir Classic 605 Air Purifier

If you’re looking for a unit that’s ideal for spaces larger than 500 square feet, then you definitely need the BlueAir Classic 605 Air. This high-end unit purifies air effectively in spaces ranging from 500-775 square feet. Unlike other purifiers that cleanse your air three times per hour, this one can go up to five times! It’s the best choice for medical centers or homes with people living with chronic pulmonary illnesses.

It contains the best HEPA filters currently in the industry. This technology enables you to activate the highest fan speeds and still read a novel in a quiet setting. You’ll find three sets of HEPA filters with varying micron sizes. Larger microns trap fur and dandelions that trigger sneezing and nasal irritation. Smaller microns capture microscopic impurities like fine dust particles and chemical molecules from aerosols.

Do you reside with a cigarette smoker who forgets to go outside? The good news is that you can purify your living room from your office or on the way home. The BlueAir Classic 605 app enables you to control your unit remotely thanks to WIFI.

2. Three Important air purifier tips for the best results

The Best Air Purifiers:

1. Close your doors and windows before purification

Air purifiers are built for indoor purposes. It’s advisable to shut all doors and windows to prevent the continuous entry of smoke and toxic particles. No matter how powerful the purifier is, it cannot cleanse your living area and incoming airflow simultaneously.

2. Avoid keeping a large number of furry pets indoors

This might be a bit tricky for cat lovers. Cats leave traces of fur on carpets, couches, and tables. Owning more than one cat in a confined area poses a great health risk due to inhaling a high volume of fur. The same case applies to Chihuahuas and Shih Tzus. Limit yourself to just one indoor pet for your lung’s sake.

3. Keep an open space around your air purifier

How do air purifiers work? By drawing in surrounding air from the sides. It’s wrong to put your purifier between shelves or near bulky items. Why? Because they limit the volume of air that goes into your purifier.

3. Choose the best!

Now that you know the best brands that will give you value for money, make that purchase today. Breathing purified air is good for your lungs because you eliminate any irritations. It also reduces the number of hospital trips by getting rid of asthma and allergy triggers. You also avoid any embarrassment when hosting visitors at home or your boardroom.

Do you need help on how to purchase any of the air purifiers in this article? Feel free to contact us today!

My name is Isabel and welcome to Blooming Air I created Blooming Air to be a place where homeowners can keep their homes healthy for them and their families with high-quality air units.