An air purifier is the best way to bring that fresh air feel to an enclosed room. It will be able to remove over 99% of harmful airborne particles and odors, leaving your home smelling clean and fresh.
There is a lot of variation between air purifiers. They come with different features, different filter types, and different sizes that can accommodate different rooms throughout your house.
Below, we have put together a complete buyer’s guide that has everything you need to know about air purifiers and filters.
Not only that, but we have searched high and low to find our favorite purifiers on the market to match your specific needs.
Best Air Purifiers on The Market – Features Comparison Table
|Product Name||Best for||HEPA||UV-C||Auto Detection||CADR||Max Room Size|
|GermGuardian AC4825||Best Overall||Yes||Yes||No||100||200 sq. ft.|
|AeraMax 100||Home||Yes||No||No||150||200 sq. ft.|
|Whirlpool Whispure||Home||Yes||No||No||315||500 sq. ft.|
|Alen BreatheSmart||Home||Yes||No||Yes||825||1,100 sq. ft.|
|Prolux Enfinity||Dust||Yes||No||Yes||750||1,000 sq. ft.|
|Breathe Fresh||Smoke||Yes||Yes||No||2625||3,500 sq. ft.|
|AeraMax 200||Allergies||Yes||No||Yes||300||400 sq. ft.|
|GermGuardian AC4300BPTCA||Pets||Yes||Yes||No||100||200 sq. ft.|
|Winix WAC9500||Pets||Yes||No||Yes||212||283 sq. ft.|
Things You Should Check When Buying A Best Air Cleaner
Identify air pollutants : Air purifiers can help rid your home of anything from tobacco smoke to pollen and everything in between. Most purifiers will be able to filter out the majority of the airborne allergens and pollutants floating around in your home, however, some target specific particles and odors better than others.
As you look through the different air cleaning machines, pay attention to their features and designs so that you can select the purifier that will be most effective in fighting against the pollutants that are present in your home. In order to help you identify the pollutants that are floating around in your home, we will give you a brief overview of the most common ones.
- VOCs – VOCs (volatile organic compounds) are chemicals that can cause irritation and jeopardize your health. These chemicals are commonly found in many household items such as cleaning supplies, paints, glues, and disinfectants. These chemicals can enter the air as vapor, which you can then inhale.
- Tobacco Smoke – Tobacco or cigarette smoke is absorbed by your carpets, furniture, and drapes throughout your house. Since most homes are limited to the amount of ventilation they have, it traps the smoke inside and allows it to seep into these areas. Over time, the smell left over from tobacco smoke will accumulate and it will become noticeable without smoking at all. An air purification machine will help filter out tobacco smoke and prevent the smell from lingering in your house.
- Microorganisms – Microorganisms include bacteria, pathogens, viruses, and antigens. Basically, they are the germs that make us sick. Air purifiers will reduce and eliminate many of these microorganisms, helping you stay healthy and avoid getting sick.
- Airborne Particles – Airborne particles include mold spores, pollen, fungi, pet dander, dust mites and plant spores. These particles can cause asthma attacks and indoor allergy irritation. If you struggle with asthma or allergies, a HEPA filter will be able to help you get rid of these particles.
Choose A Correct Filter Type : There are many different filter types that are designed to tackle different kinds of air pollutants. Each filter type is designed for different pollutants. The best filters for you will depend on your specific needs with the air quality in your home. You can check the following most common filter types.
- HEPA Filters
The high-efficiency particle air (HEPA) filter is a staple feature that you will see across most purifiers. This type of filter can remove air pollutants that equal or exceed 0.3 µm in size. In other words, it will remove 99.97% of the particles that are floating around in your home.
HEPA filters can also reduce dust, capture mold spores that are floating around, can help reduce the smell of cigarettes and other tobacco smoke, pollen, and dander from your pets.
The HEPA air filter is present in all of the filters we are reviewing today. It is the most effective filter overall and is ideal for reducing household odors and allergens. We recommend that you get a top rated air purifier that has a HEPA filter since it covers so many common airborne particles.
Although they are the most popular, they do have some weaknesses, including the inability to filter out ultrafine airborne particles. Fortunately, there are other filters that are designed to take care of this which we will go over below.
- Carbon Filters
Carbon filters are typically used along with other filters within an air cleaner. Carbon filters do a great job in absorbing odors and gasses. Charcoal is a great natural filter that uses its ports to capture any odors that pass through it.
- Charged Media Filters
Media filters are a combination of a particle filter, which is a lesser version of the HEPA filter, and it uses an electrostatic charge to capture tiny particles as it passes through.
These filters can capture particles that are much smaller than what a HEPA filter can take out. They can filter out particles that are three times as small as what the HEPA filter can take out. These types of filters will have to be changed out a lot more often because they lose their effectiveness at a fast rate.
- Electrostatic Precipitators
These filters work in a similar way that the media filters do. The only difference between the two is that the media filter captures the particles, while the electrostatic precipitator expels the particles through precipitation which is then collected on specialized plates.
The main advantage that these filters have over media filters is that they do not have to be replaced at all. Instead of replacing these filters, you can simply rinse the plates off and continue using it.
- Antibacterial Filters
These filters are specifically designed to trap and kill bacteria and viruses that pass through it. Typically, air purifiers that have antibacterial properties use HEPA filters that are treated with special substances. These filters are specifically designed to destroy harmful microorganisms. These filters may also employ UV light to help kill germs that pass through the purifier.
Some machines use heat to help sterilize the air that passes through it. These purifiers have an inner core that is heated up to 400°. When the air enters the core, the high temperatures kill all of the microorganisms that it captures. It contains the hot air until it cools off. Once the air cools off and sinks, it is released back into your home.
A pre-filter is an additional layer that the air passes through before it enters the main filter stage. A pre-filter is designed to take out large particles that are floating in the air. These particles usually consist of dust and pet hair.
The pre-filter takes out the larger airborne particles before the air is sent through the main filters of the machine. It is a feature that you will see on most air purifiers that are designed for pet owners.
Know CADR : The clean air delivery rate (CADR) of an air purifier is based on the volume that the purifier can filter within one minute. The higher this number is, the faster the purifier is cleaning the air.
In order to determine what clean air delivery rate you need, you can use the following formula:
The CADR is equal to 3/4ths of the square footage of the room that the purifier will be placed in. This equation assumes the purifier will be placed in an enclosed room with ceilings that are of a normal height. If you’re using the purifier in an open room with more ventilation or a room with vaulted ceilings, you will have to adjust the CADR accordingly.
In this example, the CADR that you are looking for should be equal to 225 or higher.
- Calculating the CADR with Vaulted Ceilings
This equation assumes you are in a standard size room that has ceilings that are 8 feet high. If you have ceilings that are higher than 8 feet, simply choose the next highest clean air delivery rate level. If you have vaulted ceilings that are two stories high, you should jump up at least two levels above the rate that you calculated.
A good rule of thumb when determining what the right CADR is for you is to always round up. Cost permitting, it is always more effective to choose the purifier that has the highest clean air delivery rate.
- Filter Cycle Frequency
Another term for the CADR is the filter cycle frequency. The filter cycle frequency is the amount of time it takes to filter all of the air within the room size that it is designed for. The faster the cycle time is, the more efficient the air cleaner is doing its job.
This time will increase with smaller areas and decrease when you place it in larger areas. In general, the lower the cycle frequency is, the better.
Check These Powerful Features
- Auto-Check Filter Feature
Some of these machines will automatically notify you when it is time to change the filter. This is useful because these purifiers become less effective if they are using an old and rundown filter. These things are easy to forget about, so having a purifier that will automatically remind you when it is time to change the filter is a very helpful feature to have.
- Variable Speeds
While this is not a standard feature in all air cleaning machines, some of them have variable speed controls. This is useful to have to adjust to different conditions. For example, if you have company, you may want to turn up the power on your purifier. On the other hand, if you are not going to be home very much through the week, you can save energy by lowering the speed.
Another use for this is to control the noise level. If you are using a bedroom air purifier, you can keep it on high during the day and turn it on low to reduce the noise level while you sleep.
- UV-C Sanitizer
The UV-C sanitizer is a type of light that is used to eliminate common household odors that come from smoking, foods, and our pets. It also kills bacteria using ultraviolet light. This is an extra feature that will allow the air cleaner to keep odors down and it removes even more bacteria from the air.
- Noise Level for Bedrooms
Air purifiers make noise. Some of them are loud and powerful while others are soft and quiet. If you want to save money, one of the sacrifices you will typically have to make is with the noise level of the model. Likewise, if you are looking for a powerful yet quiet purifier, you are likely going to have to spend a lot for it.
The important thing to remember about noise level is the location that you will be using it in. If you are using it in your living room where daytime activities will be taking place, the noise level will be a big issue. However, if you are using it in your bedroom, this is something that you should consider as a priority.
Do Not Ignore Your Room Size
There are a lot of things to consider when you are selecting a top air purifier for your room and home. The biggest factor that you need to keep in mind is the size of the room that you will be using it in.
There are different purifiers that are designed for different sized rooms. In general, purifiers that will be able to handle larger rooms will come at a higher cost.
In order to get the best value, it is important to understand what type of air purifier you will need for a given room. You can use the above mentioned CADR to figure it out.
Air Purifier Reviews
Below, we have some air cleaners that we reviewed. We are going to start with our favorite air cleaning machine and work our way down to the best air purifiers for the home, dust removal, allergen removal, smoke odor removal, and pet hair removal.
Each of these air cleaning machine will make a big difference in the air quality in your home. If you have allergies, asthma, you live with a smoker or you own pets, we highly recommend that you strongly consider an air purifier.
We have reviewed a wide selection of purifiers that specifically target different air pollutants. We hope that you are able to find the purifier from our list that is perfectly suited for your needs. If you want to see more options, then you can check our picks and reviews of the following air purifier brands. They have established their reputations in the industry so you can get quality products and services.