The best air purifier

best air purifier

After reviewing  a lots of air purifier finally we find Alen BreatheSmart is the best air purifier, Price is very much compatible for general person, quality much better than any other item. Around 90% people are very much happy after using this item. This is really good for your home or car use. Thus owning at least an air purifier at home is considered a “must-have” in any family in big cities, where air pollution rate is alarming. But it’s not easy to pick up an air purifier for home because there are too many choices as well as advanced technology that need a proven guideline from health specialist or a specific review from users of some top-ten models.  With the purpose of many families like you pick up an air purifier at home, Our expert team select air purifier reviews in 2018 into a detailed review article. From this article of mine, you can have some first clues on an ideal air purifier that you need to buy, or hopefully, you will find a best home air purifier here for use.

Alen BreatheSmart

Honeywell True HEPA

GermGuardian AC4825

Top rated best home air purifier reviews 2018

1stAlen BreatheSmart1100 sq. ft. Large Rooms21 lbs9.8Check price
2ndHoneywell True HEPA465 sq. ft. Large Rooms21 lbs9.7Check price
3rdGermGuardian AC482522-Inch Germ Guardian10.9 lbs9.6Check price

Air contamination is becoming a major problem in our daily lives, as it may bring severe short-term and long-term effects for us like dangerous diseases (asthma, lung cancer, COPD – chronic obstructive pulmonary disorder), or shorten our lifetime and living quality. The low quality of air affects badly for some vulnerable groups of people, especially elderly ones and our kids – whose body haven’t been fully developed, or too weak to fight against severe changes in the environment. Our expert scientist check lots of best air purifier for smoke and finally pick best 5 top rated air purifier.

Alen BreatheSmart Customizable – Best air purifier for dust

Alen BreatheSmart Customizable Air PurifierI have never seen any air purifier for dust that you can be “customizable” like this one from Alen – a worldwide leading brand in manufacturing air purifier for dust. You can pick up a version based on your air purification demands (either 1-pack or 2-pack), and your interior design with 14-panel colors. While the first Coway one can only be used for small rooms, this air purifier is eligible for large open rooms, living rooms up to 1,100 sq. Ft. Apart from its customization power, its performance also amazes me! The BreatheSmart technology with the help of HEPA-pure filters can bring a pure natural air for a big space under 2 hours. This feature is super great if you want your rooms to be cleaned up in a short time after coming home from a long tiring day at work and hours stuck in traffic jams. For your peace at home, the WhisperMax technology can reduce the annoying sound of this machine. You can never notice its noise even when it’s running in highly polluted air mode. This Alen air purifier provides a lifetime warranty to its filters, plus a 60-day money back guarantees to prove its first-class quality. These 2 big pluses isn’t too bad to have a try with this machine, is it?






  • Eligible for big space, open rooms, living rooms up to 1,100 sq. Ft
  • BreatheSmart technology with HEPA-pure filters ensure to make the air pure under 2 hours
  • Totally “customizable” with multiple filter options and 14-panel colors that match your air purification demands and interior home designs
  • Packed with both an adapter and a converter to use outside the US with void warranty
  • WhisperMax technology to reduce noise
  • Alen’s Smart Sensor detects air quality to save energy and increase filter’s life
  • Filters come with a lifetime warranty
  • 60-day money back guarantee for peace of mind
  • Cannot deal well with seasonal allergens
  • Annoying smell on few first day of use
  • Super noisy when on high speed
  • Some people said that this machine is not quiet even on night mode (for me there is no problem!)

Honeywell True HEPA Allergen Remover – Best air purifier for allergies

Honeywell TrueHoneywell True Allergen Remover is the only air purifier in this list that can be used for a super big room (465sq. Ft). Thus you can use this machine both for your home or for your office. With the 4 air filtering levels, you can customize this device to clean your room. For example, when I go home after my business trips (which lasts for a week or more), I often choose the “turbo” level for a quick air detox. For daily use, I only choose “general” to save energy while maintaining pure natural air. For those who are serious to know about HEPA, this Honeywell air purifier uses the True HEPA filter that is 30% better in performance versus the conventional HEPA filter. To save up energy consumption while sleeping, you can use the auto-shutdown feature with 3 options (2, 4, or 8 hours). Finally, its replacements are quite cheaper and easier to buy than those from others. A small drawback of this machine is that its performance can be a waste of money if you pick it for your small or super small room. In this case, I recommend you to look for the remaining models in this review article (especially the first Cowell one).






  • Highly recommended for large or extra large room (465sq. Ft)
  • 4 air filtering levels for your demands (germ, general, clean, allergen, turbo)
  • Auto-shutdown with 3 options (2, 4, 8 hours)
  • Integrated with the True HEPA filter that kills 99,97% bacteria, viruses, chemicals
  • Useful for families with pets (can kill pet dander, odors from pets, pollen)
  • Easy and cheap to maintain replacements
  • Might be a waste of money if you use this air purifier for small or super small rooms
  • The turbo mode might be a little bit noisy. Thus this mode is not recommended to use when you are sleeping)
  • Can’t remove all pet dander and odors
  • The filter lights don’t work after replacement (as reported by some users)

GermGuardian AC4825 3-in-1

GermGuardian AC4825 air purifierThis GermGuardian air purifier is eligible for big and open space like living rooms or kitchens. With the help of True-HEPA filter (which has higher efficiency than the conventional HEPA one), this machine can eliminate almost all toxic particles out of your room. The UV-C light is my favorite feature on this machine since it helps me kill all airborne bacteria and viruses. From the day I installed this machine in the kid’s room, my daughter no longer suffered from seasonal allergies. I also tried to use the second one in my kitchen, and I noticed that there was no bad smell from cooking. This air purifier has changed my life since then, and now I can’t imagine a day without it! Another great point in this air purifier that made me purchase it is the multiple cleaning levels. This feature helps me save a lot of money in my monthly electricity bills. With many positive reviews from certified buyers and quality certification with Energy Star and CADR rated 100+, I think this air purifier is good enough to in any modern home.






  • Suitable for big, open space like living room, kitchen
  • True-HEPA filter with double efficiency than the ordinary HEPA filter
  • UV-C light to kill airborne bacteria and viruses
  • Remove the odors of cooking and pets
  • Quiet enough to run for bedrooms or kid’s rooms
  • Multiple levels of cleaning to match your demands
  • Indicator light to alert the time to change UV-C light bulb and filter
  • Proven quality with Energy Star with CADR rated 100+
  • The support quality is poor (as reported from many certified buyers)
  • Annoying plastic smell from the machine after 8 to 12 months of use (resulted from the UV-C light)
  • Several people said that this air purifier doesn’t last long (around only 17 months of use)

Coway AP-1512HH Mighty

Coway AP-1512HH Mighty Air PurifierThis air purifier is by far the third most powerful model of Coway for years with many improvements in performance and energy saving. The 4-stage air filtration technology (pre-filter, carbon filter, HEPA filter, and ionized filter) helps eliminate almost all pollutants and dirt efficiently. What differs this air purifier from many cheaper ones on the market is that it passes HEPA efficiency test with the quality rate of 99,97%, which means that this machine can filter almost all toxic particles out of your room. The Eco mode collaborates with the air quality indicator to diagnose current air quality to take actions. If the air at that time is too polluted, the fan will be auto turned on to boost air filtering function. After 30 minutes, if the air gets better, the fan will be turned off to save energy consumption. With this smart Eco mode, you can let the Mighty Air Purifier do its job all day without worrying about significant extra electricity charges. With these washable filters, you will save up a lot of money for buying filters every 3 months. However, after 1 year of continuous use, you should buy a new filter package. I recommend you to buy the extra filter package with this air purifier. It includes all the filters that you need to get this machine ready for continuing to filter your air.

  • 4-stage air filtration technology to eliminate pollutants and dirt effectively
  • Eco-mode to save energy consumption
  • Suitable for a room of 49 sq.m
  • Filter change alert
  • Air quality indicator with particle sensor technology
  • Compact and modern design, easy to fit in any narrow space in your room
  • HEPA efficiency rating score of 99,97%
  • 360-degree air cleaning for the whole room
  • Washable filters save up money for filter recharge
  • Warranty up to 3 years
  • 2 color choices (black and white)
  • Filter replacement package can be bought with the air purifier with a cheaper total cost
  • There is only one supply volume of 110v
  • Weak performance on odors and chemicals
  • Support quality is not good (low response rate)
  • Can’t be used for big areas
  • Light sensor is sometimes troublesome (when you turn the lights on and off to seek something, then the speed is auto-switched from highest to lowest level)
  • Can be too noisy in high-speed mode

AIRMEGA 300 The Smarter

AIRMEGA 300 The Smarter Air PurifierThis air purifier is an excellent choice for anyone who wants to have healthy and peaceful nights of sleep. Unlike some other air purifiers which are too noisy to run at night, this Smarter Air Purifier from AIRMEGA uses Smart Mode to save energy and reduce noise when you are sleep. When the Airmega light sensor detects light reduce in your room, it will automatically slow down the fan to make the area quieter while maintaining air filtering. If you are considering to buy an air purifier for your kid’s room, you should choose this one; then you don’t have to worry that your kid will cry out in the middle of the night because of the annoying sound from the air purifier. An extra of this AIRMEGA air purifier that enhances your sleep quality is the auto-timer. You can program this machine to turn off automatically after 1,4, or 8 hours instead of waking up at night to turn it off. Thus there are no more disturbing nights! For your information, this air purifier works best for a room of 1,256 sq. Ft. So you should calculate your room space to know if this machine is eligible for you or not.

  • HEPA filter with efficiency rating 99,97%
  • Smart Mode to save energy and bring high-quality nights of sleep
  • Real-time air quality control
  • Auto-timer (1, 4, 8 hours)
  • Suitable for a room of 1,256 sq. Ft
  • Dual-filtration that can remove 99,97% toxic matters
  • There is no True-HEPA filter (True-HEPA filter has a higher pollutant elimination power than the ordinary HEPA filter)
  • The sensor is too sensitive. Sometimes it detects moisture particles as pollutants. Thus it may cause a lack of moisture in the room and also makes a wrong trigger to the air quality detector


GermGuardian AC5250PT 3-in-1

GermGuardian AC5250PT I bet that the one who designed this air purifier is a true pet addict, because of a wide variety advanced features for families with pets. With the help of True HEPA (which is advertised to kill 99,97% toxic particles) and Pet Treatment, this air purifier is proven to eliminate allergens including pet dander, dust mites, and pollen. In its filter group, there is a filter for pet owners with natural charcoal to remove annoying odors from pets. This filter can also be a great add up for your home kitchen, or for families with smokers. The Pet Pure, which is integrated into this machine’s filters, can stop the growth of molds, viruses, mildews and odors on the surface of the filters themselves. Thus, this unique agent can extend the life of your filters and require less time and effort needed to clean up the filters after few months of use. With 5-speed control, you can adjust its power to match with air quality and to save energy consumption. This air purifier works best for medium or big open rooms. So it may be a waste of money if you purchase it for a small or super small room.

  • True HEPA with Pet Treatment technology can kill 99,97% allergens in your room
  • Pet Pure removes all toxic odors, molds, and bacteria on the surface of the filters
  • Charcoal filter eliminates odors from pets, smoking, or cooking smells
  • UVC light with Titanium Dioxide helps kill all bacteria, viruses, germs, and mold spores
  • 28-inch digital power with 5-speed control for energy saving
  • Can be used for medium or big rooms with CADR rated 125+
  • Modern and compact design to save space and for easy moving around the room
  • Purchasing this machine with an extra filter package is recommended
  • Too expensive for small to super small rooms
  • The filter replacement is too pricey, and it has shorter life (6-8 months) than other brands within the same price range
  • Unpleasant smell for few first days of use. In following days there is another annoying faint smell (the cause might be from the UV light, which can be turned off)


In short, we think Alen BreatheSmart is really best for your home use based on customers rating, pricing and quality. I hope that this detailed review article of mine will help you choose an air purifier for your home more accessible. Please notice that all I have shared here is based on my personal experience when using these machines, and some opinions are not entirely accurate. For the best result, you should go to the showroom to try on, or read more reviews from your friends who are using these air purifiers.

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