Best Air Purifiers for 1000+ Square Feet (Sq. Ft.) – Large Rooms

Large rooms need serious air purification power. But which air purifiers are best for rooms 1000 square feet in size? It’s important to note that just because an air purifier is rated to cover an area of 1000+ square feet, does not mean it is a quality product. We have researched and tested numerous air purifiers and have come up with the best three. Take a look at the best air purifiers for 1000 square feet.

The Best Air Purifier for 1000 Plus Sq. Ft. Rooms


  • 1000 sq. ft.
  • 3 Stage Filtration
  • Eliminate Household odors
  • Bedrooms, living room, etc
  • Affordable Price


  • 1,125 sq. ft.
  • #1 Rated for Allergies & Asthma
  • Medical-Grade Air Filtration
  • HyperHEPA filters
  • Eliminate Dust, Mold, Germs, etc


  • 1100 sq. ft.
  • Smart Sensor
  • Allergies, Dust, Mold, etc
  • Sleep better
  • Odor elimination

Best Air Purifier for 1000 sq. ft. Large Room Reviews

If you want a good-looking purifier that covers 1,000 square feet of space, this Bissel model may be perfect for you. It looks like a vintage radio set with its front-mounted mesh pre-filter which captures airborne debris. The short faux wood legs which lift the device off the ground also add to its antique aesthetic. The dial on top operates the digital display and controls fan speed and switches between modes. 

There is an activated carbon filter inside as well as a HEPA filter that captures particles down to 0.3 microns, and takes care of any gases, VOCs, pollen, dust, smoke, pet hair and dander, as well as cooking, smoke, and other household odors. 

With its Automated CirQulate System, the air is monitored and readings are provided to share with you the real-time air quality of your home. It will also adjust the fan speed so that it is not running stronger than needed, in order to cleanse your home, saving you on electricity.

For night time use, there is a whisper-quiet fan option and an automated Night mode, which clean the air without interrupting your sleep. Rated to quickly cleanse the air in rooms up to 308 sq. ft., this is a great machine to use in bedrooms, basements, offices, and living rooms. 


  • Lends a classic look to any room
  • The filters are easy to change
  • The fan is large and works well for circulating air in bigger spaces


  • Limited options, does not have a remote
  • No handle makes it more difficult to move around the home
Trial Results

As with anyone who struggles with seasonal allergies, finding relief often isn’t easy. The first thing you notice when taking it out of the box is its strong build quality. Not made from cheap materials, there is a peace of mind that comes from a sturdy air purifier. Easy to set up and get running, we started it off on high to quickly clean the air. Yes, it was a bit loud, but it was also sucking in and expelling a lot of air. After we let it run on high for an hour we reduced the fan speed to low as a maintenance speed and at that level, we were quick to stop noticing the sound at all. With a few hours this relieved our allergy symptoms and noticeable improved the quality of the air in our house. 

This air purifier is a beast! Medical-grade filters work tirelessly to remove air impurities down to .0003 microns, creating some of the purest air possible. 

Using a very powerful fan that takes in and circulates 780 cubic feet of air per minute, you can clean a whole room in no time! The craftsmanship and construction is solidly built, and there are 6 fan speeds that feed air though the medical-grade true HEPA filter before pushing it back into the room in a 320 degree arc.

This is the kind of air purifier your doctor will recommend to you. The award-winning IQAir HealthPro Plus air purifier has an incredibly efficient proprietary HEPA filter that is more effective than standard true HEPA filters. This removes pet dander, smoke and even airborne viruses. 

As this is a medical-grade air purifier, it’s best suited for people with severe allergies, compromised immune systems, or who want an absolutely pure air environment. With its powerful filtration system, it can clean the air of a room up to 1125 sq. ft., making it great air purifier for the entire house. 

The IQAir has an intuitive and easy-to-use remote, multiple programmable options, filter-life monitoring, and color-coded lights to indicate when it’s time to change the filter. 

If you are looking for the best air purifier on the market, this is it. 


  • Ultra-efficient HEPA filter
  • The filters las a long time
  • Comes with casters so you can easily move it from room to room
  • Removes smells and chemicals from the air


  • More expensive than the other air purifiers on our list
  • Filters are expensive, though they do last a long time

Trial Results

This air purifier may be expensive, but it is the best. It will clean the air of your house, relieving you of any allergy symptoms and putting your mind at rest. We had it running and within an hour it was like breathing the purest air. The expensive price tag may be a deterrent for some and this air purifier may be overkill for most people, but if you are looking to have the cleanest air within your home, this is the machine that will do it. 

The BreatheSmart Classic could have been named “the BreatheSmart Classy”, as it looks so sleek and modern. It comes in a variety of colors and finishes, which is great if you want to match your air purifier with your decor. 

The BreatheSmart Classic doesn’t just sit pretty, it also removes 99% of airborne contaminants, such as pollen, pet dander, mildew, mold particles, dust, bacteria, aerosolized viruses, and fungi. 

This device is a great choice if you are looking to sanitize larger rooms, like those up to 1,100 square feet in size. With its powerful fan it is able to clean a room of that size every 30 minutes. 

Inside this beautiful box is a medical-grade H13 True HEPA filter that is coated with a mold and fungi inhibiting compound. There is a washable pre-filter which captures large particles before they get to the HEPA filter, preserving it’s lifespan. 

Equipped with an air quality sensor light, this lets you know how high the levels of particles are in your air. There is also an auto setting which will adjust the speed of the fan for the most efficient use, allowing you to set it and forget it. 

The top of the machine features the control panelwhich is intuitive, with large buttons and clear labeling. When running it generates what is known as “pink noise” a frequency that has been shown to improve sleep quality up to 25%. The display lighting darkens completely, which manes you can keep this running overnight without any interruptions.


  • Comes in a wide variety of designer colors
  • Suitable for 1,000+ square foot rooms
  • Features a turbo speed mode for quickly purifying air in large rooms
  • Very quiet on low fan speed


  • Filters can be expensive to replace every 6 months
  • Meant to be stationary, as it is a bit heavy and bulky

Trial Results

We placed the BreatheSmart air purifier in our living room during wildfire season, when our house seemed to always be filled with a thin haze. It was really affecting our breathing, giving us throat irritation and itchy eyes, and doing these filter tests during this time was a good way to gauge their usefulness. 
We started off on high in order to quickly clean the air in our 600 sq. ft. space, and after an hour reduced the fan speed to low. On the lowest setting it was very quiet and within an hour we noticed a big difference in the clarity of the air. By that evening we no longer had the physical symptoms we were suffering with and we turned on Auto-Mode and let the device work it’s magic. 
Air PurifierRoom Coverage
Bissell Air 320 1000 square feet
IQAir Healthpro Plus1,125 square feet
AlenBreathe SmartTable Data

Features to Look for

The features to opt for when purchasing an air purifier for 1,000 square foot spaces include:

  1. A “turbo” or “high” fan speed
  2. A fan that can move up to 100CFM of air for every 250 square feet of space
  3. A pre-filter that can be washed or vacuumed

Benefits of an Air Filter for 1000 Square Feet

One of the benefits of using an air purifier that is rated for 1,000 square feet or more is that you will be able to use it in any room of your house. If you choose to purify the air in a smaller room, you can still use one of these machines. Most of them offer “whisper-soft” operation or sleep modes too so you don’t have to worry about excess noise. These larger models also typically come with large filters which means they are able to trap more debris and contaminants in the air – better for heath and air quality.

FAQ’s – Frequently Asked Questions

What is the best air purifier for large rooms? 

Alen and IQAir continually top various lists of the best air purifiers for large rooms.

Which is the best HEPA air purifier? 

The HEPA filter is the standard for air purifiers. It simply refers to a high-grade filter that is used in most purifiers. You should always look for a purifier with at least a true HEPA filter. Other features and filters will determine the overall quality of the product.

How long does a HEPA filter last?

In units like the ones we reviewed above, they typically last between 6 and 12 months. However, you should at least check yours every 6 months.

Closing Thoughts

The right air purifier for you is out there. All you have to do is know what you want and do your research. We hope our review will make your research much easier and instill confidence in your purchase. If you start with any of the three air purifiers for 1000 square feet we have reviewed above, you are already on the right track! If you have an even bigger room, find out what is the best extra large room air purifier for 1200 square feet or more.

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