The Best Air Purifier for Large Rooms

Depending on the season, you can spend a lot of your time indoors. In doing so, you can be exposed to a number of airborne particles that can affect your health on an everyday basis. Even the cleanest homes have hundreds if not thousands of particles in the air, but having a purifier can help reduce that amount by minimizing dust, dander, and fumes.

Another great reason for an air purifier is if you want to rid your home of tobacco smoke or pet smells. Sometimes these smells have nothing to do with your home but are wafting in from your apartment or condo neighbors. Either way, these units can really change your living space and make it fresh again. Let’s look at some great units that have the power to deal with bigger rooms and larger spaces.

STAR PICK
Comfort Ozone Ionic Air Purifier Odor Remover Ionizer

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The New Comfort Ozone Ionic Air Purifier easily snags our top choice award by virtue of its compact design, incredibly powerful filtration performance, and ultra-low power consumption. Never before have we seen a single air purifier that packs it all- some manage to deliver great filtration but end up being so large that you would be better off getting a central air purification system installed into the HVAC system of your house. Some are extremely power efficient, however they begin to struggle as soon as you take them out of the study room and put them into a bigger space, like the drawing room or master bedroom.

However, the New Comfort Ozone Ionic Air Purifier ticks all the right boxes. It is just 15.2” x 12.5” x 10.9” in dimensions, and weighs a measly 10.9 pounds. Despite its compact form factor, this purifier can service a massive area of up to 3500 square feet, and is designed to eliminate organic as well as chemical odor from the air. The whole package is very well designed and the cherry wood casing fits in well with the black coated stainless steel chassis. A special energy efficient front grill design makes the fan up to 10% more powerful in terms of effective airflow when compared to similarly sized models from competitors.

More airflow results in a higher CFM rate, and a better ACH rating (which is exactly what we need if we want to purify a large room). However, the best part about this machine is that it is a completely filter-free purifier. What this means is you never have to worry about changing or cleaning filters ever again. With regular air purifiers, just the cost of changing all the different filters (pre-filter, HEPA filter, carbon filter, etc.) would amount to the cost of an actual air purifier itself within the short span of a couple years, or even less in some cases.

Yet, since this is an ionic ozone filter, the suspended particulates and pathogens are all captured by the power of static electricity which is generated by charging up ion plates within the filter with electric current. This allows the overall size to stay low, and the noise to be virtually non-existent since there are no meshes or filters blocking/resisting the airflow that is generated by the intake fan. It is silent, small, maintenance free, and effective. What more do you need from an air filter?

STAR BUDGET PICK
GermGuardian Air Cleaning System with Pet Pure True HEPA Filter

GermGuardian True HEPA Filter Air Purifier, UV Light Sanitizer, Eliminates Germs, Filters...
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Let’s say you wish to purchase a room air purifier but don’t have a lot of cash to spend. You fear that you might be forced into buying a product of sub-par quality that will end up doing more harm than good to the health of everyone in your family. After all, poor filter design and inefficient motor or fan design could end up costing a lot in the form of medical as well as electrical bills. Well guess what, GermGuardian has got your back on this one. The AC5250PT 3-in-1 Air Cleaning System is a perfect choice for anyone on a budget who is looking to buy a brand-new room air purifier. Despite its affordable price, this sleek little unit is outfitted with a true HEPA filter and even has Pet Pure Treatment built-in.

What that means is, pet hair and dander will never make it out through the exhaust of the filter, and they will not clog up the HEPA filter either, thanks to the excellent pre-filter assembly that catches all the slightly larger particles which are floating around in the air. This 28” digitized tower-style air purifier has five different speed modes for you to choose from, and has a CADR rating more than 125.

The filter needs to be changed every 6-8 months depending on your usage, but you don’t have to keep tabs on when you last changed the filter because there is a LED indicator system that will automatically notify you when your filter needs replacement. The internal filter itself is coated with titanium dioxide, which happens to be a good anti-pathogenic substance and will immediately neutralize viruses or bacteria as soon as they touch the filter. GermGuardian really hates germs, that is why they even added a UV-C light emitter into the filtration system.

RUNNER-UP
Alen BreatheSmart Customizable Air Purifier

Alen BreatheSmart Classic Large Room Air Purifier, Medical Grade Filtration H13 True HEPA for...
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This is not a cheap unit by any stretch, but when you come to know about the technologies that lie embedded within this sleek machine, you can at least begin to understand why Alen thinks that it is worth more than two budget room air purifiers combined. First, let us begin with the exterior. Very sleek and minimalist, nothing that doesn’t need to be there. The LED display fades off into the body and is touch operated for added convenience.

There is a bevy of sensors on the outside, only you don’t see them with your eyes. For example, the exclusive SmartSensor automatically detects the amount of pollutants in the air, as well as the type of pollutants. Then it instructs the purifiers filtration system to adapt to the changing concentration and composition of incoming impurities to guarantee maximum efficiency and provides real-time adaptive purification based on your preferences and needs. In addition, the purifier is Energy Star certified, since it consumes only 105 watts of power on full load. And oh, don’t forget the lifetime warranty either.

Yes, the solid metal chassis and rugged exterior means that your Alen Purifier is not going to break down any time soon – but we all love that manufacturer who goes the extra mile to ensure complete customer satisfaction and peace of mind. The BreatheSmart is customizable, as you can tell from the heading. What this means is that it supports 4 different filter types to adapt to your changing needs, and the front panel is available in 14 different colors for you to choose from so you can perfectly match your home decor.

RUNNER-UP
AeraMax Air Purifier with Large Room Allergy and Asthma 4-Stage Purification

Fellowes 9320501 AeraMax 300 Large Room Air Purifier Mold, Odors, Dust, Smoke, Allergens and...
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We were genuinely surprised to see a “smart” room air purification device for this cheap. It is definitely not the best in terms of maximum coverage area (300 to 600 square feet recommended), but more than makes up for the lack of coverage with some brains. Well no, it won’t do your office work for you. But, it can sense the concentration as well as types of impurities present in the surrounding air and adjust its filtration mechanisms accordingly. For example, say the air contains slight amounts of suspended particulate matter like pollen and dust, but high amounts of organic or chemical odors. In that case, the carbon filter is put into action, and airflow rate as well as direction is optimized to ensure that the odor is neutralized as fast as possible.

The HEPA filter inside is capable of removing up to 99.97% of airborne particles, and has been treated with AeraSafe antimicrobial treatment in order to kill disease causing pathogens upon contact. There is even a special mode for cold and flu season that has been proven to be extremely effective at capturing and neutralizing the influenza virus based on in-house testing. It has also been certified to be Asthma and Allergy Friendly by the Asthma and Allergy Foundation of America.

Choosing the Best Air Purifier for Large Rooms

People place so much emphasis on health and well-being these days. We demand healthy and nutritious food, workout in gyms, intake nutritional supplements, do meditation and yoga, and load our phones with fitness apps. But do you ever feel like something is missing? Like, you are omitting that one key component which is vital to both your physical as well as mental well-being? Well, here is a clue – you literally can’t live a couple minutes without it.

People say that water is more important than food because you can survive a week or more without eating, but cannot survive a couple days without drinking water. And that is true. Which is why, we drink water daily – purified water that has been processed especially for consumption by people because water from natural sources is often contaminated with disease causing pathogens, suspended particulate, chemicals, etc. But, do we treat air the same way? We know that 9 out 10 houses have a water filter, but how many of these houses also have an air purification system installed?

Why? Is it because you think that the air which you are breathing right now in your home is pure and free from contaminants? Well, that couldn’t be any farther from the truth. Why do you think so many people suffer from respiratory issues these days? Asthma, throat irritation, flus, bronchitis, and even lung cancer – all those issues are caused either directly or indirectly by an increased concentration of contaminants in the surrounding air. Well, some of them are caused by pathogens such as bacteria and viruses. But respiratory tract issues are much more common in highly populated urban areas which have lots of vehicles, factories, etc. nearby.

STAR PICK
Comfort Ozone Ionic Air Purifier Odor Remover Ionizer

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Heck, even your home that is supposed to be free from dust and pollution contains a fair amount of dirty air and you don’t even realize it. Pet dander, positively charged ions from all those electronic appliances in your house, microscopic dust particles, pollen grains from the garden or backyard – they are all floating around in the atmosphere of your home. If you have a newly furnished home or have a bunch of fresh painted walls nearby, then chances are that the air you are breathing is laced with chemical fumes, albeit in microscopic amounts.

They won’t be an issue now, but continued exposure to this air will show its side effects 10 years down the road. Positively charged ions will numb the cilia (microscopic sensory hair) on the interior of your nasal tract. This causes you to feel more exhausted than usual, and that is why the fresh air of a meadow or beach feels so energizing – because it is free from charged particles that are common in any modern “smart” home these days.

But what does all this have to do with you purchasing an air purifier? What will the air purifier do for you? Will it kill all the disease-causing germs and guarantee that no one in your family ever falls sick again? Well… it won’t. While that would indeed be awesome, there is no commercially available home air purifier that can kill 100% of all disease-causing pathogens that are floating around in your home. Besides, an air purifiers main job is to purify the air, to decontaminate it by removing suspended particulate matter such as pet dander, pollen, mold, etc. So basically, an air purifier will do the following for you:

1. It will make the air in your home “feel” fresher, by removing odors and suspended particulate matter such as yeast and dust.

2. Depending on the complexity and quality of the filtration system, it might also remove microscopic chemical droplets and fumes from the air in your house (such as the one that is released by wet paint).

3. Some air purifiers come with electrostatic filtration systems that neutralize excess positively charged ions in your home, making you feel slightly more rejuvenated and energetic as compared to before.

4. HEPA filters and activated charcoal/carbon filters will capture even the smallest of particles (as small as 3 microns), so if there is anyone in your home who is allergic to dust, pollen, or pet dander, this might greatly help with that issue and will certainly improve the quality of life of the allergic individual.

STAR BUDGET PICK
GermGuardian Air Cleaning System with Pet Pure True HEPA Filter

GermGuardian True HEPA Filter Air Purifier, UV Light Sanitizer, Eliminates Germs, Filters...
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So how do you go about choosing the perfect air filter for yourself? What if you have a larger room? Well, the basics are still the same no matter your rooms size. You must take the following factors into consideration while purchasing a room air filter:

1. Filtering Performance

2. ACH (Air Changes per Hour), and CADR (Clean Air Delivery Rate)

3. Running Costs (Electricity consumption, replacement filter costs, etc.)

4. Noise emission

5. Size and portability

Make sure that the room filtration unit which you are purchasing has a HEPA filter installed in it – no “HEPA-like”, “99.9% HEPA”, or any of that other fake stuff. Get true HEPA, since certified HEPA filters can filter up to 99.97% of particulate matter from the air. To put things in a slightly more statistical perspective, a true HEPA filter should be capable of catching particles as small as 3 microns. There are some advanced filters available which are classified as Hyper-HEPA. These are a 1000 times more powerful than regular HEPA filters, and can comfortably catch particles as small as 0.003 microns. This should take care of pollen, suspended particulate, pet dander, microscopic fiber, and pretty much anything that you throw at it, even some slightly larger microorganisms such as protozoa, certain species of yeast, etc.

RUNNER-UP
Alen BreatheSmart Customizable Air Purifier

Alen BreatheSmart Classic Large Room Air Purifier, Medical Grade Filtration H13 True HEPA for...
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The ACH rating is important, since it denotes how often the purifier is cleaning all the air in your room. How fast the air purifier can cycle through a complete room of air determines how fresh and pure the air is, and it is recommended that the purifier should cycle through all the air in the room within 10 to 15 minutes. For example, an ACH rating of 4 means that the purifier cycles the air in your room 4 times per hour, or needs 15 minutes per cycle. That is the minimum, and know that manufacturers often show modified or incorrect ACH ratings on the box to entice customers into buying their product. They rarely mention the conditions in which the ACH was calculated, for example – a change in the CFM (which can be controlled by increasing or decreasing fans speed and slat orientation) will greatly affect ACH.

No one runs their purifier on full power all the time, as it is both loud as well as detrimental to the lifespan of the machine. If you are purchasing the machine for usage while sleeping or working, you want it to be as silent as possible. So, oversize your purchase by 20 to 40%, depending on the size of the area that you want to purify and the maximum CFM that the machine is capable of. CFM is Cubic Feet per Minute (of air), and denotes the volume of air that can pass through the machine. You can calculate the max ACH of a unit by dividing the volume of your room (cube of length times breadth), with the maximum CFM that your unit can manage.

RUNNER-UP
AeraMax Air Purifier with Large Room Allergy and Asthma 4-Stage Purification

Fellowes 9320501 AeraMax 300 Large Room Air Purifier Mold, Odors, Dust, Smoke, Allergens and...
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Get a machine with a carbon pre-filter, preferably washable for easy maintenance and low running costs (just wash it, no need to buy a new one every three months or so). A pre-filter also increases the lifespan of your purifiers HEPA filter, by making sure that only smaller particles get to the HEPA filter. Also, make sure that your unit has a filter change indicator so you know when you need to replace or clean the filter. Dirty or over-clogged filters will not capture any more contaminants, and might even bleed waste back into the room air. Big castors on the bottom and a carry handle on the top are crucial to ensure easy portability (if you plan on servicing multiple rooms with the same portable room purifier unit).

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