Buying Guide for Smart Air Purifier

Air purifiers are a modern-day, city life requirements, especially if you live in the polluted metropolitan areas. They are also a must if you have children or elders with severe allergies. 

An article published on Lung India establishes the fact that air filters do have a positive impact on vascular health and overall improves an individual’s respiratory health. 

Smart Air Purifiers, goes a step ahead in helping you better understand the surrounding air composition, the historical levels of various pollutants and allergens present in your living area. They can be remotely controlled, scheduled to function through a simple click over your mobile apps. 

Smart Air Purifier can be integrated with intelligent assistants like Alexa and Google Home, giving you an added flexibility to control over voice without leaving your current work.

The other capabilities of smart air purifiers include:

  • Up to date alerts through messages
  • Detailed air quality data
  • Maintenance reminder over messages
  • Reminders for filter change

Things You Should Know While Buying Smart Air Purifier

1. Connectivity  

Smart Air Purifiers use both Bluetooth and Wifi connectivity options to help you control and operate remotely. Bluetooth based air purifier is useful when your mobile is around the air purifier because it has a limited range.

Whereas, wifi has a larger range and can be used to schedule your air purifier from distance.

2. Estimated CADR Requirements

Clean Air Delivery Rate (CADR) signifies the amount of clean air delivered by an air purifier. Higher the CADR, the better is the air delivery rate. 
An indicative chart for CADR requirements is as under.

Please note that your home air quality will not improve significantly if you are using a lower CADR air purifier for a larger room size.

3. Purifying Technology

Harmful nanoparticle found in your living areas is of the size of 0.3μm. A true HEPA filter (high-efficiency particulate air) having a minimum of 99.97% efficiency is sufficient to remove particulate matter of size 0.25μm and above. Hence all air purifiers essentially use HEPA as their base purifying technology. 

Only volatile organic compounds (VOCs) like formaldehyde, ozone, carbon monoxide, and carbon dioxide can pass through HEPA. In order to arrest them, air purifiers need to have an activated carbon filter. 

So the purifying technology essentially needs to have a minimum of pre-filter (for removing large particulate matter), an activated carbon filter and a HEPA filter.  

4. Power Consumption

In air purifiers, fans consume the most of electric energy. A normal ceiling fan consumes 46 to 75 watts of electricity. 
Hence, in order to be energy efficient, your air purifier should not consume more than 50 to 55 watts of energy.

5. Warranty

Look for a longer period warranty so that you can have service and free replacements for your air purifier in case of accidental damages. 

Usually, filters are not covered under warranty. So, please check for the list of replacements parts.

6. Price

Finally, cheap does not always mean an inferior product. While buying choose value for money air purifier i.e which satisfies all your criteria and is still under your budget.

Best Smart Air Purifier in India

Mi Air Purifier 2S

Mi smart air purifier can be integrated to AI-powered Alexa, helping you communicate through voice commands. Hence you have the flexibility to schedule, adjust the fan and power on the air purifier without leaving your current work. 

Another smart and powerful way to control your air purifier is by using the Mi Home App. Through the app, you can conveniently

  • Check the air quality, temperature, and humidity
  • Adjust the fan strength  
  • Set a timer to power on the purifier 
  • Get a notification to change the filter

The high-precision laser particle sensor in Mi smart air purifier helps detect the micro dust particles as small as 0.3μm and displays on the OLED screen. You can easily check the temperature and humidity levels on the OLED screen. 

The automatic 2S OLED display helps you sleep comfortably by adjusting the brightness according to the surrounding light.

The 4.8 kg, Mi smart air purifier gives you the flexibility to operate in three different modes (auto, night and manual) effectively purifying your room in 10 minutes. 

To make you home pollutant-free, the smart air purifier has a 360-degree air intake and comes with a 3 layer filtration system with H11-grade filtration technology from TORAY, Japan. 

Specifications
CADR310 m3/hr
Power Consumption29 watts
Purifying TechH11-grade filtration technology from TORAY, Japan (Pre-filter, Multicare Filter, HEPA Filter & Activated Carbon Filter)
Warranty1 Year

Pros

  • Alexa & App control
  • H11-grade filtration technology
  • OLED display
  • 29 watts power consumption

Cons

  • Only 1 year warranty period

2. Honeywell Air Touch – S8 Air Purifier


You can remotely control your Honeywell Air Touch S8 air purifier over mobile phones using apps. The wifi compatible smart air purifier provides real-time indoor air quality and data on filter health.

But, in case you do not have access to your smartphone or have wifi issues then you can use the touch panel controls.  

Honeywell S8 delivers high efficiency of purification through its 3D airflow design, which ensures zero blind angles and optimum air suction. With a CADR of 300 m3/hr, Honeywell Air Touch is sufficient to purify a bedroom or a large living room of area 450 sq.ft.

You get pure and quality air through the three-stage advanced filtration system. 

  • A pre-filter for removing larger dust particles
  • HEPA filter for removing microscopic pollutants and allergens
  • HiSiv filter for removing formaldehyde, toxic gases, VOCs & odor. 

The ambient air quality is reflected through the three-color indicators. 
At 9.5 kg, Honeywell S8 is heavy but has a unique anti-fall base design to protect from accidental nudge or push. 
Your sleep is not disturbed while using the air purifier because it has an in-built sleep mode for silent operation.

Specifications
CADR300 m3/hr
Power Consumption52 watts
Purifying Tech3-stage advanced filtration system (Pre-filter, HEPA Filter & HiSiv Filter)
Warranty1 Year

Pros

  • App control over Wifi
  • Intelligent auto mode
  • 3D Air Flow design
  • Patented HiSiv filter

Cons

  • Only 1 year warranty period
  • Weighs 9.5 kg

Best Air Purifier in India

Philips 2000 Series AeraSense AC2887/20 Air Purifier

The aerodynamic architecture, IPS Vita shield technology, and the Aera sense technology combine in the Philips air purifier to bring quality air output and a healthy home environment.

The aerodynamic structure boosts airflow. The VitaShield IPS technology is a unique multi-stage active filtration system forming the core of the air purifier for which it consumes 60W of electricity.

Finally, the Aera Sense technology embedded in the air purifier easily detects harmful particulate matter even smaller than PM 2.5. hence, the name Philips AeraSense.

Philips’s air purifier monitors the air quality in real-time and automatically customizes the fan’s speed, providing you clean air at 333 m3/hr CADR. Which is sufficient for a large room or a big bedroom of approximate size 440 sq.ft.

The plastic body Philips AeraSense air purifier makes low levels of noise and has a smart light control that lets you have a disturbed-free sound sleep.

Specifications
CADR333 m3/hr
Power Consumption60 watts
Purifying TechVita Sheild IPS Technology (Pre-filter, Multicare Filter, HEPA Filter & Activated Carbon Filter)
Warranty2 Year

Pros

  • 2 Years warranty
  • Aerodynamic structure
  • Vita Shield IPS technology
  • Aera sense technology

Cons

  • 60W of power consumption

2. Coway Sleek Pro AP-1009 Air Purifier

The Coway Sleek Pro is an intuitive Korean designed air purifier, boasting of having a super silent operation. 

The air purifier has three operational modes, an auto mode that uses special sensors and air quality indicator that automatically purifies your surrounding air. The speed mode for airspeed control and mood mode for switching off the lamp lights. 

Coway Sleek air purifier delivers 303 m3/hr of pure air which is sufficient for your drawing room, bedroom or living area of up to 355 sq ft. 

The 7.5 kg, innovative flow path designed Coway air purifier makes way for optimized airflow so that you get a more efficient and maximum airflow. 

Your home environment is filled with pure and fresh air when it passes through a three-layer filtration process. The layers include a Pre-filter, Coway patented Urethane Carbon Filter and HEPA filter effectively removing all kinds of pollutants and odors. 

Specifications
CADR303 m3/hr
Power Consumption38 watts
Purifying Tech3-stage filtration (Pre-filter, Urethane Carbon Filter & Multi-layer HEPA Filter)
Warranty3 Year on the motor and 1 year on electrical parts

Pros

  • 3-year motor warranty
  • Sleek and intuitive design 
  • Special sensors and air quality indicator
  • 38 Watt power consumption

Cons

  • Weighs 7.5 kg

3. Honeywell HAC25M1201W 53-Watt Room Air Purifier

Honeywell Air Touch A5 air purifier ensures optimum clean air circulation by sucking polluted air from the sides and bottom and then releasing at an angle from the top. Plus the 3D airflow design makes sure that the purified air reaches even the farthest corner of your room.

You can be worry-free even when your kids are playing around, just because Honeywell Air touch comes with an anti-fall design, zero exposure to filters and child lock features.

The CADR of 250 m3/hr is best for purifying your small living or bedroom of sizes up to 323 sq ft. effectively in 10 minutes.

To deliver fresh and purified air, Honeywell Air Touch employs a 99% efficient three-stage advanced filtration system consisting of Pre-filter, HEPA and Activated Carbon Filter.  

Specifications
CADR250 m3/hr
Power Consumption53 watts
Purifying Tech3-stage filtration (Pre-filter, HEPA Filter and Activated Carbon filter)
Warranty1 Year

Pros

  • 3D Air Flow Design
  • Child lock features
  • Anti-fall design

Cons

  • 1-year warranty

Conclusion

Looking at the fast-paced urban metro life, I would have bought Alexa powered smart Mi Air Purifier 2S for my home. Because the Mi air purifier is value for money purchase.

For the given price you can conveniently control it remotely, comes with an OLED display, H11-grade filtration technology and saves on power bill with 29 watts of power consumption. 

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