Best Air Purifiers Reviewed – 2017 Buying Guide

Are you looking for the best air purifiers to turn the air in your home or office into a sanctum of peace and tranquility?

Maybe you’re just looking for some helpful information on how these nifty little devices work, just so you know you’re making the right buying choice. Speaking of choice, your options in this field are a wide array. It can be quite difficult to pick out the right filter or purifier for your needs when there are so many different choices out there.

Don’t worry about being confused by a lot of technical words that whoosh past you either. Here you will find recommendations, reviews, and a handy guide, all of which will help you figure out which purifier you need for your purposes. Say goodbye to the huge amounts of time lost scouring the internet for a good device recommendation. All the information you could possibly need is right here​

Factors That Influence Your Buying Decision

If you plan on buying air purifiers from an actual store, watch out! The salespeople there are notorious for attempting to confuse you with a lot of technical talk. Here are some of the most common terms you need to know, along with a brief explanation of the different types of purifiers and filters. The more knowledge you have, the better you will be able to make a more informed, wise decision as to the purifier you need.

First off, you need to think about the CADR or the clean air delivery rate. This is, as the name suggests, the rate at which the device cleans the air it takes in and pushes it out into the room that is being purified. This includes getting rid of all those nasty allergens and toxins. Typically, three toxic substances are cleaned out – smoke, dust, and pollen. Each has its own rating for the CADR, which depends largely on the size of the filter being used as well as the type.

The flow rate of the purifier is simply the rate at which air flows through it over time. All purifiers have fans that suck in air and blow it out again. The more powerful the fan, the higher the flow rate. Another factor that affects this value is the type of the filter cleaning up the air. A larger filter means more surface area, which leads to a higher flow rate!

Other factors that should affect your buying decision for air purifiers include the size of the device, the type of filter it uses, the technology within these filters and additional features that make your life easier. Some purifiers also clean out specific types of germs and toxins with a higher priority given to these.

Taking these factors into consideration, here is a list of the ten most awesome air purifiers for 2017, consolidated and reviewed especially for you. While they are definitely not the only options open to you, they are some of the best out there. If you don’t think any of these suit your needs, the world of purifiers has more to offer. Check out the detailed instructions on what to look for in the perfect filter under the top ten reviews below!

The Top Rated Portable Air Purifiers For Your Home

ProductRoom Coverage
(Sq Ft)
Particle FiltrationSpeedsWarranty 
GermGuardian AC4825228 ft99.97%3 Speeds3 Years
O-Ion B-1000 100 ftN/A2 Speeds3 Years
Honeywell 50250-S390 ft99.97%3 Speeds5 Years
Holmes Desktop HAP242-NUC110 ft99.00%3 Speeds3 Years
GermGuardian AC4100120 ft99.97%3 Speeds3 Years
Hamilton Beach (04386A)160 ft99%3 Speeds1 Year
Best Choice Products SKY10573500 ftN/AAdjustable60 Days
AeraMax 100200 ft99.97%3 speeds3 Years
GermGuardian GG100059 ftN/A1 Speed1 Year
Whirlpool Whispure AP51030K495 ft99.97%4 Speeds5 Years

GermGuardian AC 4825 - Editor's Best Pick

This purifier has a HEPA filter in it which can clean your air of almost 100% of the dust and pollen in it. It also gets rid of pet hair, spores, odors, smoke and food fumes using a charcoal based filter. There is an awesome little light filter with UV-C light, which works with a chemical to get rid of most household germs.

It is a tower design of purifier, standing at 22 inches tall, and has 3 different fan speeds to select from. A CADR rating of 100+ for each common allergen is also given to this purifier, which can clean all the air in a 155 sq. ft. closed off room.

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  • Great for allergies and people with breathing issues
  • Highly effective for animal allergies


  • It is somewhat loud on its highest setting


O-Ion B-1000 Permanent Filter Ionic Air Purifier - Great for Smokers

The B1000 is a great little filter and purifier for small rooms, offices and even bathrooms. It works using ionic and electrostatic technologies to clean the air, along with a UV system that kills almost all common household bacteria and viruses by exposing them to UV light. A carbon filter is also present in the purifier to clean the air of any pollutants, allergens, smells and dust.

The dust is attracted to a charged rod within the device, which can be cleaned very easily. It is also able to double down as a night light once plugged in! The ionic technology can get rid of particles that are so tiny a magnifying glass couldn’t see them. It is 17 inches tall and has 2 different fan speeds that are both super quiet. Overall, this is a great purifier for personal use!​

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  • Good for getting rid of smoke smell
  • Very Quiet
  • Compact


  • It gets hot if it's run for more than 6-8 hours


Honeywell 50250-S True HEPA Air Purifier - Good For Large Rooms

The Honeywell purifier uses a HEPA filter that can last for years if maintained properly. Requiring a replacement every 5 years, this purifier can be vacuumed clean. In addition to this, the HEPA filter is made of glass fiber, which can clean the air in your room of nearly 99.97% of germs and dust.

This is secluded behind another filter that is carbonized, so as to catch any large bits of dust and lint while getting rid of any nasty smells inside your home and office.

You won’t have to worry about changing the filters either – this purifier can detect and notify you when they need to be changed or even when cleaning is required. Put this CADR 250 rated beauty down in any room up to 390sq. ft. in size and enjoy cleaner fresher air!

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  • 360 degree air intake
  • Cleans air very fast


  • Noisy
  • High power consumption


Holmes HEPA-Type Desktop Air Purifier - Good for Small Rooms

The Holmes air purifier makes use of a great HEPA filter to get rid of almost 99% of all the unwanted particles in your air. The fans on this purifier have three settings for the speed, along with an ionizing system (this is optional) that can help the filter to remove particles from the air. It can be stood up vertically or laid down horizontally, which makes it one of the most versatile air purifiers out there. Able to clean the air in a room that is almost 110sq. ft. in size, this is the perfect purifier for your room or small office. With a CADR rating of 70, this is definitely one of the best you can get!

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  • Budget friendly option


  • Not good at good rid of odors
  • Filter clogs fast


GermGuardian AC4100 3-in-1 HEPA Air Purifier System

GermGuardian is one of the better manufacturers out there, and the AC4100 is one of their top products. It is the perfect fit for a small office, as it is made for table top use. 11 inches in height, it features a gorgeous UV light sanitizer for reducing all the odors in the office. This is paired with a nice little HEPA type filter.

The filter can get rid of up to 99% of all dust, dirt, allergenic particles like pollen and spores, and pet products! A charcoal filter is also included in the device, so that pet odors, food, and smoke can all be cleansed of their smell before being released into the room. It has 3 speeds for the fan, each of which makes as little noise as you can imagine. The best part? It can remind you of when your filters need to be changed out and cleaned.


  • Great for allergies
  • Great for getting rid of pet smells
  • Cool design


  • Air flow is not out the entire front face. Airflow does not come out straight.


Hamilton Beach TrueAir Allergen-Reducing Ultra Quiet Air Cleaner

This air purifier is the perfect fit for a larger room, with a capacity to clean a room that is up to 160sq. ft. in area. It includes a very efficient permanent filter that won’t ever need to be changed. It is of the HEPA type and can get rid of most allergens in your home. It can be vacuumed when cleaning is needed.

The purifier itself has a tower design for vertical standing and is very easy to use. There is one dial to control the power and fan speed, which can be cycled between three different speeds. A bonus of this purifier is that it features a pet-friendly version.

With 99.9% cleaning done by the HEPA filter, two carbon filters for odor elimination, and the ultimate in performance, this versatile purifier is one of the best out there for your home and office space.

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  • Works good for pet odors
  • Compact
  • Filter is easy to clean



Best Choice Products SKY1057 Ionic Air Purifier - Great at Eliminating Odors

Built to last out of stainless steel and solid wood (in a brilliant cherry color), this purifier is great for getting rid of particles and smells in your home. It ionizes the air around you too so that there are fewer particles in it when you breathe in.

The filter can get rid of nearly all odors, including mold, allergens, gasses, smoke, dust, fumes and food. It also eliminates allergens in the air, so you won’t have to worry about hay fever when the spring comes around and the pollen levels skyrocket.

Cleaning is easy enough, with ceramic plates that can be slotted out and washed regularly. This is one of the most unique cleaners and filters out there, especially since some parts of the device are actually handcrafted for additional authenticity, efficiency, and perfection.

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  • Good for removing odors
  • Quiet


  • Better at eliminating smells than filtering the air


AeraMax 100 Home Air Purifier for Allergies and Asthma with 4-Stage Purification

The AeraMax purifier has a HEPA filter which kills germs and removes all particles from the air, leaving it free of 99.97% of the particles in it before. It is certified as being great for asthmatic and allergy-prone users and has a special mode that can be activated during the flu season to get rid of the virus responsible.

The gorgeous little purifier can clean the air in your room, all the way up to an area of 200sq. ft., which is huge. A carbon filter is present for larger particles and odors, and it has a very special 4 stage cleaning technology that ensures the ultimate in fresh, breathable air.​


  • It has an auto mode
  • Great for allergies and pet dander


  • Loud beeping noises with buttons
  • Does not oscillate


GermGuardian GG1000 Pluggable UV-C Air Sanitizer and Odor Reducer - Great for bathrooms

One of the finest air purifiers on the market right now, the GG1000 makes use of UV-C light to destroy germs in the air. No chemicals are used to kill the germs like bacteria and viruses in the air of your home. In addition to this, it can eliminate all those terrible smells in your home, such as smoke, cooking, fumes and even sewage (if you have pets, you know the struggle is real).

The purifier can be plugged directly into a wall outlet, making it super easy to use. It is small enough to fit anywhere without being a hindrance and is extremely simple to boot. There is just one fan speed and no need for you to replace the air filters or clean them either. In fact, the purifier doesn’t even USE filters!​

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  • Good for handling kitty litter smells
  • Good for bathrooms


  • No on/off switch
  • Can be hard to plugin


Whirlpool Whispure Air Purifier - Great for dust

Whirlpool is a company with a huge reputation in the industry. The Whispure is a purifier that is meant for the bigger spaces out there. Featuring a HEPA filter that can get rid of particles that measure up to 0.3 microns in size, along with a carbon filter for the larger particles in the air, the potent 3-stage combination of filters ensures that nearly 99.98% of particles and odors are removed from your air.

The Whispure can clean out a 500sq. ft. room with ease, changing the air 4.8 times per hour as it works. It has a very quiet function and has very diverse controls as well. In fact, it has 4 different fan speeds to pick from, along with additional modes like Turbo and Sleep.

A CADR of 315 on all fronts has been given to this unit, and it truly deserves it. While it isn’t the best for small rooms and office spaces, it can serve the larger needs of a big home very well indeed!

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  • Simple to use
  • Great for dust
  • Great for allergies


  • Large

Factors to Watch for When Buying Purifiers

There are many different factors that should influence your buying decision if you go to a store to buy yourself an air purifier. These include:

1. Filter Type​

    1. Mechanical filters – the HEPA filter is the most common of these. They work by physically stopping particles from flowing through using a grid of fiber. All the HEPA filters in our top ten are of the True variety, which can remove 99.97% of particles.
    2. Ionic filters – They make small particles in the air bond with each other and become larger. These can be trapped far more easily.
    3. UV filters – expose bacteria, viruses, and germs to UV radiation which kills them and takes away their ability to reproduce.
    4. Electrostatic cleaners – A charged rod that attracts particles to it like a balloon rubbed on a woolen cloth attracts bits of paper.
    5. Hybrid systems – a combination of two or more of the other types of filters.

2. Air Change

This value is the number of times the purifier will clean all the air in the room per hour. For example, if it is 5, the device replaces all the air in the room 5 times each hour. This is at maximum speed, though, so try to get a purifier with a higher rating than you need, so you can enjoy quietness while cleaning.

3. Size

Think about how large your room, house or office space is, and consider space savings when you pick a purifier to fit it. For example, the Whirlpool model on our list would not be great in a small bathroom or bedroom.

When picking a model out though, ensure that it can service a room that is slightly larger than you need it to be. This ensures that your operation of the purifier will be free of background noise and will put less strain on the system.

4. Sensors, Automation, and Notifications

This feature, when present, improves your quality of life but doesn’t impact how well the purifier functions directly. Most new models have automatic notifications for when the air filters need to be cleaned or replaced. Others detect the quality of air in a room and change the fan speed accordingly to keep it at a set level of purity at all times.

Other models can function as nightlights that can turn on when it is after sunset. Sensors and indicators are a great way to save some money on energy bills and replacement parts.

Air Purifier Guides And Reviews

If you didn't quite find the air cleaner you were looking for, check out these specific guides:

Best Air Purifiers for Smoke Odors

Best Air Purifiers for Mold/Mildew

Best Air Purifiers For Allergies (pets included)

Best Air Purifiers for Dust 

Final Words

So, there you have it! The best ways to either pick out air purifiers of your own, laid out in crisp, easy detail for you. Remember that no two filters and purifiers are the same. Some may be better suited to your specific needs; others may not.

Think about the factors like sizing, filter types and indicators before you make a hasty buying decision. It is the only way you can ensure that your air is cleaned, purified and made easier to breathe without costing you most of your savings. When buying, don’t get distracted by fancy advertising. Here’s to your fresher, more incredible life with truly pure air in your lungs!