2020 Best Air Purifier for Large Rooms & Spaces (Reviews & Buying Guide)
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By Joey | 12 November 2020 | 0 Comments

2020 Best Air Purifier for Large Rooms & Spaces (Reviews & Buying Guide)

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2020 Best Air Purifier for Large Rooms & Spaces (Reviews & Buying Guide)

Can an air purifier be too big for a room?

Air purifiers usually come with an indicated room space capability that varies from one brand model to the next. This means that there is a possibility that your preferred air purifier model may have an either smaller capacity capability or an enormous one compared to the room you intend to get it for. One with a smaller capability than your room space may not be able to efficiently perform, while one with greater capability than your room space may just be wasteful. On the contrary, experts advise that an air purifier with greater capacity would be a smarter choice in comparison to one that is too small. Going for a smaller purifier may be more affordable but may not give the desired performance and air cleaning results. It is also quite advisable to have modest air purifiers in each room, which however meet the room’s capacity, rather than get a huge unit to cater for many rooms. This article looks at some of the best air purifiers, their features and specifications, to help determine which the best air large room purifier is.

Large Room Air Purifiers Reviewed in This Guide

Honeywell air purifier

                       
The Honeywell HPA300 is quite ideal for large spaces. It weighs 24 pounds and measures 22 inches in height and 21 inches in width. It uses a two stage filtration process to filter out dust and pollen. This process employs the use of an activated carbon filter (pre-filter) and 3 true HEPA filters. This gives it the ability to capture up to 99.97% of pollutants in air that are larger than 0.3microns. Just like most other purifiers it comes with a user interface made up of 5 buttons and two LED indicators, one for pre filter replacement and the other for HEPA filter replacement. It has 3 fan modes namely Allergen, Clean and Germ. Power consumption ranges from 40 to 130 watts depending on the mode. It is said to comfortably cover 465 square feet of room space.
 

Dyson air purifier


This unit has the capability to efficiently purify large rooms and even comes with a cooling fan for summer use. It employs the use of a carbon activated filter and a 360 degrees HEPA filter believed to guarantee cleaning up to 99.7% of pollutants. The 360 feature gives it the ability to capture pollen, pet dander and bacteria particles from all angles. The Dyson air purifier has app compatibility. A night time mode dims the display and makes the unit run quietly and also comes with 10 fan speeds. It has 3 sensors to detect particles, VOCs temperature and Humidity. This unit is considered ideal for rooms measuring 300 to 450 square feet.

Molekule air purifier

  
The Molekule air purifier comes in a cylindrical silver body that is made out of aluminium making it lightweight and easily portable, this however does not dwarf its power. It has a diameter of 8.25 inches, measures 23 inches in height and has a weight of 18 pounds. A touch screen display which can be used to modify the unit’s settings and modes by selecting between Auto, Boost, Silent and Dark Modes. The Molekule air purifier uses a dual filtration system that consists of the small Molekule Pre-Filter and the accompanying PECO (photo electrochemical oxidation) filter that guarantees air cleaning of up to 0.3 microns. It has been built with Wi-Fi connectivity to give the user easy remote control. This feature gives enhanced interactivity with the unit through a smartphone app. Maintenance is quite easy as it only entails replacing the PECO filter semi-annually. It is also recommended that the Pre-filter be replaced quarterly. This does not require a lot of technical know-how. This unit is suitable for use on large rooms as it has the ability to clean spaces up to 600 square feet. 

Holmes air purifier

               
The Holmes air purifier uses a modular filter arrangement. The Holmes HAP756U has a recommended room capacity of up to 418 square feet. Its filtration process uses 3 replaceable true HEPA filters and an activated carbon filter. This gives it the ability to clean up to 99% of dust, allergens, smoke, mold and pet dander. It weighs 25 pounds, measures 22.5 by 21.5 by 10.5 inches and has a consumption of about 97 watts. It has 4 fan speeds and two LED indicators, one for pre filter replacement and the other for HEPA filter replacement. 

Winix air purifier

                            
The Winix Air Purifier has a recommended room area of 360 square which is quite sizeable. It comes with an air quality indicator light and 2 Modes, the Auto Mode and the sleep mode. It is also fitted with a Plasma Wave that can be turned on to get rid of smells and odors. There are 4 fan speeds to choose from, a HEPA filter replacement LED indicator and 3 LED lights for the timer. This unit employs the use of a 3 stage filtration system composed of a Carbon filter, a True HEPA filter and Plasma Wave Technology. It is Energy Star Certified with a consumption of 70 watts. The unit weighs 15.4 pounds and measures 15 by 8.2 by 23.6 inches. Tis unit is said to be able to clean 99.93% of particles larger than 0.3 microns.

Coway air purifier

 
This South Korean appliance is one of the most popular air purifiers on the market and has been carefully designed to rid the air of odors, germs, dust, allergens and toxins in small medium spaces. The Coway air purifier is however quite capable and can be used on even larger rooms. It was designed to ensure that it still works efficiently when in close proximity with other obstacles. Its user interface is quite user friendly having five function buttons and a light indicator for air quality. The unit features an effective 4 stage filtration process that comprises of a washable pre-filter, an activated carbon filter, a true HEPA filter and an optional ionizer in that order. The fitted True HEPA filter is considered the best worldwide and gives the unit the ability to capture 99% of particles as small as 0.3 microns. This is quite efficient and guarantees high levels of purified air. The ECO Mode feature lowers the units power consumption to as low as 4.9 watts and makes this unit the most energy-saving air purifier on the market. 

Levoit air purifier


The Levoit air purifier (Levoit p350) measures 8.8 by 8.8 by 14.2 inches and uses a 3 stage filtration process composed of a Pre-filter, a true HEPA filter and an activated carbon filter. It even has a pet proof function. This gives it the ability to clean up to 99.97% of particles in air larger than 0.3 microns. The manufacturer recommends that this unit can be used on rooms with a capacity of up to 215 square feet. It is exceptionally silent and has a rated power of 45 watts. It has one LED indicator for filter replacement and an interactive user interface. The unit even has a sleep mode to dim lights during the night, a timer and 3 accompanying fan speeds.
 

Costco air purifier

This Costco air purifier amazingly is able to cover up to 365 square feet. It measures 3 by 20 by 11 inches which is quite large. The Blueair Air 403 Purifier is sold exclusively on Costco.com. It uses a 3 stage filtration process composed of the carbon layer, a HEPA silent filter and a polypropylene filter that works in tandem with an electrostatic brush. It has the ability to clean up to 99.97% of particles in air larger than 0.3 microns. It has 4 fan speed settings and uses between 30 to 80 watts among these speeds. This unit currently comes with a 1 year warranty with the option of extending to a 5 year warranty.

Comparison

Brand Honeywell HPA300 Dyson Molekule Holmes Winix Coway Levoit
Dimensions (inches) 22 x 21 7.7 x 2.3 x 40.1 8.25 ( diameter) x 23h 22.5 x 21.5 x 10.5 15 x 8.2 x 23.6 18.3 x 16.8 x 9.6 8.8 x 8.8 x 14.2
Weight (lbs.) 24 8.4 18 25 15.4 12.3 7.5
Room capacity (sq. ft.) 456 300 600 418 360 465 219
Control method - Voice
App
Remote
Voice
App
Remote
Voice
App
Remote
Voice
App
Remote
Voice
App
Remote -
Voice
App
Remote
Voice
App
Remote
Filtration
  1. Activated Carbon Filter
  2. 3 True HEPA filters
  1. 360 HEPA filter
  2. Activated Carbon Filter
  1. Pre filter
  2. PECO filter
  1. Activated Carbon Filter
  1. 3 True HEPA filters
  1. Carbon Filter
  2. True HEPA filter
  3. Plasma Wave Technology
  1. Pre filter
  2. Activated Carbon filter
  3. True HEPA filter
  4. Optional ionizer
  1. Pre filter
  2. Activated Carbon filter
  3. True HEPA filter
Air Cleaning Rate (up to 0.3 microns) 99.97% 99.7% 99% 99% 99.93% 99% 99%
Modes 3 fan modes 10 fan speeds 4 fan modes 4 fan speeds 4 fan speeds Auto Mode and Eco Mode 3 fan speeds + sleep mode
Warranty 5 Years limited 2 years 2 years 5 years 2 years 3 years 1 year
 

In Conclusion

Based on the details given above it is easy now to determine the best air purifier for you to use on a large room. While an air purifier unit may meet your room capacity needs, its filtration system, warranty, pricing and even size may not be ideal for you. Understanding the varying features across these popular brands will better ready you for the dilemma that arises when trying to purchase the most efficient unit for you.
 

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