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Air purifier: Best options and buying guide

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If you arrived on this page, you already know the benefits of an air purifier to your health.

At first, it can seem overwhelming to find the formula for selecting an air purifier with so much information. But after you read this short guide below, you will be equipped to make the best possible decision.

Top 10 Air purifiers

Sale1
Levoit Air Purifiers for Home with H13 HEPA & Carbon Air Filters... best of 2021
  • 4 CUSTOMIZED REPLACEMENT FILTERS: Depending on different individuals' needs, we provide four types of filters for purchase: original filter, pet...
  • Vortexair PURIFY TECHNOLOGY: CADR rating 187m³/h allows it to cover up to 40 m², Using the Core 300 to fill your environment with clean air....
  • FILTER 99.97% OF PARTICLES: Working with ultra-fine Prefilter and activated carbon filter, Our H13 True HEPA filter traps 99.97% allergens like...
  • PATENTED QuietKEAP TECHNOLOGY: Thanks to QuietKEAP technology, the noise level is barely 24dB in Sleep Mode. The Core 300 cleans your air without...
  • TIMER & 4 FAN SETTINGS: The timer can be set at 2/4/6/8 hours. You can select a desired time for auto shut-off. Choosing a suitable speed from...
Sale2
Levoit Air Purifier for Home, Quiet H13 HEPA Filter Removes... best of 2021
  • 100% Ozone Free: The UVC Light and Anion that other brands adopt to purify air could produce a kind of air pollutant-Ozone, which is especially...
  • Advanced 3-Stage Filtration System: The Pre-Filter, True HEPA Filter, and High-Efficiency Activated Carbon Filter capture allergens, pet hair,...
  • Ultra-Silent Operation: Filters the air with the lowest noise level as quiet as 25dB for a restful and soothing indoor environment, helping you...
  • Night Light & Display Off Function: Choose between 2 brightness settings at night to help you see in the evening or turn the light off entirely...
  • 3 Fan Speeds: Choose from low, medium, or high fan speeds to tackle any level of air quality, making it a perfect fit in normal size rooms or...
3
Levoit Air Purifier for Home Allergies with Dual H13 True HEPA... best of 2021
  • 【Quiet Sleep Mode & Easy One-Touch Control 】The noise level is as low as 24dB at the Sleep Mode, and display lights will turn off in 5...
  • 【Dual-True HEPA Filters & 3-Stage Filtration】Two filters in one air purifier, both contain the Pre-Filter, H13 True HEPA Filter and Activated...
  • 【Compact but Powerful】Taking up little footprint at desktop, office table in your bedroom, office, etc. Quickly breathe fresh air in a...
  • 【A Budget-Friendly Choice】2 free filters are pre-installed in the machine. Extra replacement filters are also available to buy, easily...
  • 【Purchase with Confidence】CE and RoHs certificates, 100% ozone free.Come with a 2-year warranty and lifetime support, Levoit customer support...
4
Greenote Air Purifier for Home, H13 True HEPA Filter Air Cleaner,... best of 2021
  • 【High Efficiency Air Purifier】 According to the WHO, indoor pollution is 5-10 times as much as outdoor's. 3 layers HEPA filter and 360°...
  • 【The Lowest Noise Level】 Adopting Nidec's advanced turbocharging technology, It is only 22dB in sleep mode, no sound or light interference,...
  • 【Easy to Operate&Multifunctional】4-level speed adjustment function meet your different purification needs, a timer for 2/4/8 hours off and...
  • 【Low Consumption Air Purifier】 Life starts from energy saving, the power consumption is only 0.24Kwh even if it runs in the most powerful...
  • 【2-year Warranty & Good Service】Greenote provides 2-year warranty. Full refund in the first year and half refund in second year if your air...
5
MELEDEN Air Purifier for Home with Filters, 2021 Upgraded Design... best of 2021
  • PACKAGE INCLUDED: One HEPA Filter come with a micro usb cable, wall charger not included.
  • HEPA AIR PURIFIER FOR HOME: Filters 99.97% of dust, pollen, cigarette smoke, odors, mold spores, and pet dander. Filters particles as small as...
  • PORTABLE AND COMPACT: Size: 12.5*12.5*20CM, Weight: 550 grams. It can cover area of about 10 square meter. Perfect solution for small areas and...
  • EASY TO OPERATE: One-touch switch, press button twice, it will automatically power off after 8hours. Advanced materials, eco-friendly design.Warm...
  • SATISFACTORY GIFT: Negative ions bring high efficiency air filtraction, it also is good for emotion lifting, no ozone. Perfect gift for father,...
6
Philips AC0820/30 Series 800 Compact Air Purifier with Real Time... best of 2021
  • Intelligent purification – professional grade sensor automatically monitors, reacts & purifiers air
  • High grade filters remove 99.5% of ultrafine particles (PM2.5), dust, pollen, allergens, gases, bacteria and viruses
  • Quiet as a whisper - in sleep mode display lights are dimmed and purifier operates in near silence while you sleep
  • Compact size ensures fits in every place in your home. Provides air purification for rooms up to 49m²
  • 4-step colour display indicator provides visual feedback of the indoor air quality
Sale7
TCL Air Purifier for Home True HEPA H13 Filter, Air Filter... best of 2021
  • EFFICIENT PURIFYING PERFORMANCE - With CADR value 120m³/h, TCL Breeva A1 air purifier is specially designed for space up to 161ft² (15m²). It...
  • AIREVOLUTION TECHNOLOGY - Equipped with 3-in-1 Multifunctional Purifying Filter including Pre-filter, True HEPA H13 Filter and Activated Carbon...
  • 3 FAN SPEEDS & SLEEP MODE - 3 wind speeds and purifying intensity are adjustable to changing circumstances. Ultra-quiet sleep mode at only 20dB...
  • TIMER SETTING & CHILD LOCK - A timer button on control panel for timer setting of 1, 2, 4 or 8 hours. Child Lock function can be easily turn...
  • MULTI-COLOR AMBIENT LIGHT& SOLID BUILD METALLIC DESIGN - Four ambient light modes (Multi-color - Blue - Green - Purple) are available to create...
Sale8
Levoit Smart WiFi Air Purifier for Home Large Room 48m², Alexa... best of 2021
  • Air Purifier for Large Room: The maximum purification area can reach 48㎡(516 ft²). CADR 230m³/h, which means that in a room of 48㎡, it only...
  • Air Quality Intelligent Sensor: In Auto Mode, professional monitor sensor real-time detect the near air, accurately feedback air quality with...
  • Smart WiFi Control: Compatible with Alexa, control the air purifier by voice. Using smartphone control air purifier on the VeSync APP, so that...
  • Good Purifying Performance: 3 layer filters, activated carbon filter adopts honeycomb design, which can filter peculiar smell. Using the H13 True...
  • Quiet Sleep Mode: The lowest noise level is not more than 23 dB. The noise equivalent to whispering in a low voice will bring you a pure and...
Sale9
RIGOGLIOSO 2021 Upgraded Low Noise Portable Air Purifier for Home... best of 2021
  • HEPA Air Purifier for Home Filters 99.97% of dust, pollen, cigarette smoke, odours, mould spores, and pet dander. Filters particles as small as...
  • Air Ionizer Purifier Negative ions bring high efficiency air filtration, it also is good for emotion lifting, no ozone.
  • Easy Operation One-touch switch, Press button twice, it will automatically power off after 8hours. Advanced Materials. Warm Blue LED night light...
  • Portable And Compact Size: 12.5 x 12.5 x 20CM, Weight: 550 grams. It can cover area of about 10 square meters. Perfect solution for small areas...
  • Ideal gift for people who suffer from allergies, nasal stuffiness, cough, sneezing, asthma, etc. Suitable for home and office using. Perfect gift...
10
VAVSEA Air Purifier, Portable Air Cleaner with Fan Function and... best of 2021
  • [High Quality HEPA Filter]: 4 layer HEPA filter of air purifier traps air particles remove 99% of allergens, PM2.5 and dust mites as small as 0.3...
  • [3 Fan Speeds]: The fan air purifier provides three speeds of adjustable wind speed button. The low, medium and high wind speeds provide...
  • [Quiet Operation]: The noise level of the fan air purifier lowest wind speed does not exceed 36 dB, which is equivalent to the noise of...
  • [Portable and Foldable ]: With small size, novel and foldable design, it's easy to store and easy to use in small spaces or rooms, dual-use in...
  • [Genuine Replacement Filter]: The service life of the filter depends on the air quality and usage time. It is recommended to replace the filter...

Why do I need an air purifier?

Your answer to this question is very important in finding and choosing the right air purifier. Why?

Because knowing precisely what you want the device to do will guide you in the right direction for the device you need to purchase. Knowing this elementary answer will make your decision that much easier.

When it comes to air purification technology, each device is designed to combat specific types of particles more effectively than others.

“What air purifier do I need?”; or more specifically, “how do I choose an air purifier that works best for my home?” You’ve already learned that air purifiers come in all shapes and sizes and that they use different mechanisms to filter the air.

For example, a product may be great for removing odours from a room but not the best for removing debris like pet dander.

Another device can be very good at removing allergens from the air and not having any effect on harmful bacteria.

As you can see, knowing what pollutants you want to remove from your home will help guide you in the right direction when selecting an air purifier.

Next, I will go over the different types of air purification technologies available to help you choose a device for your specific needs.

Best Air Purifiers — Objective Data Based Analysis

The two most common types of air purifiers

The air purifier with a real HEPA filter

An air purifier with a HEPA filter is a good option for a home where someone with allergies or asthma lives. This is because it can remove 99.97% of particles as small as 0.3 microns.

By comparison, a human hair is 2 microns in size, which is 4-5 times larger than most airborne pollutants.

This type of product is excellent for capturing microscopic particles that cause allergies and asthma. If you want to remove toxins like pollen, pet dander, mould spores, etc., this is the best type of air purifier you can install.

Since this kind of device uses a physical filter, it traps all the particles in it and does not allow them to be released back into the air. For asthmatics and allergy sufferers seeking long-term relief, this is excellent news.

The ionic air purifier

The technology that ionic air purifiers work with does not use a paper filter to capture the particles. Instead, it cleans the air by emitting charged particles (ions) into the environment, which then stick to the pollutants.

After creating a bond, these contaminant particles fall to the ground from the added weight. Or they are collected on an electrostatic plate if the device is equipped with one.

An actual and proven fact is that an ionizer can remove particles as small as 0.01 microns from the air. This size is 3 times smaller than the particle size that a HEPA device can trap.

The downside to this model is that the charged particles it emits can negatively affect asthma sufferers. Another possible disadvantage is that not all ionizers include a particle collection plate.

This means that harmful pollutants that have fallen to the ground can re-enter the air if they are agitated. However, a good plus point is that these are generally the cheapest air purifiers you can get.

Optional Air Cleaning Features Also Helpful

When deciding which air purifier model to buy, two optional features will help you compare them: the ultraviolet light technology and the inclusion of a carbon filter. The device you choose can include both or just one of them.

Ultraviolet light

If you’re wondering, “What air purifier do I need to create the most sterile environment possible?” The answer is a product that includes ultraviolet (UV) light.

This powerful feature works by sending out electromagnetic radiation that breaks down the DNA of bacteria, germs, and viruses. Once this process occurs, these microorganisms become harmless to humans.

The UV light from some purifiers is very effective in neutralizing viruses.

It should be noted that ultraviolet light air purifiers are completely safe for you and your pets. The spectrum of radiation they use is within the safe range for human use.

Charcoal filter

A true and proven fact is that an ionizer can remove particles as small as 0.01 microns from the air. This size is 3 times smaller than the particle size that a HEPA device can trap.

Although all the technologies mentioned in this article are excellent for creating more breathable and pleasant air, none of them is very effective in counteracting odours. So, here come the improved models with a carbon filter.

This special filter is the best choice for removing odours caused by smoke, pets, cooking, mould, and other factors. So if you are looking for an air purifier to make your home smell fresher, a charcoal filter appliance is the best alternative.

Make sure it’s powerful enough to meet your needs.

Another essential thing to consider in an air purifier is that it is powerful enough for the space you will use it. You do not want to find that the device does not have enough capacity to purify the chosen room.

On the specification list for all air purifiers, a classification includes terms such as “Medium coverage” or “Room size”.

This specification is given in square feet (for example, 100 square feet, which equates to about 9 square meters in the decimal system).

To decide on the air purifier you want to buy, it is essential that you first measure the room (s) where you are going to install it.

It then compares the result with the rating on the device.

Just make sure the product you buy can handle the intended size of the room, and you’re good to go.

For more information on how to make sure you are buying the correct size device, see the article on this page that further explains how to choose your air purifier based on room size calculation.

Last update on 2021-07-29 / Affiliate links / Images from Amazon Product Advertising API