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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

1
LEVOIT Smart WiFi Air Purifier for Home, Alexa Enabled H13 HEPA...
  • Removes 99.97% of Particles: Consists of H13 HEPA filter, activated carbon filter and nylon pre-filter. The improved 3 in 1 filter system removes...
  • Larger Effective Purification: This air purifier CADR is 170 m³/h, cleaning your air 2 times per hour in room up to 35 m². With Vortexair...
  • Alexa & APP Timer Control: The first time you can set 0-24h timer and choose 3 speeds by your voice or smart phone. You can also set a Schedule,...
  • Bluetooth & WIFI Dual Connection: Usually smart devices only use WIFI for a stable connecting. This time with Bluetooth & WIFI dual connection,...
  • Undisturbed Sleep: With Levoit patented QuietKEAP Technology, the noise levels is 24dB in Sleep Mode. This air purifier cleans your air without...
2
Levoit Air Purifier for Home, Quiet H13 HEPA Filter Removes...
  • 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 Bedroom, Dual H13 HEPA Filters with...
  • 【2 Functions in 1】 As an upgraded version of LV-H13EU. LV-H128 not only an air purifier but also an aroma diffuser. When you want to use the...
  • 【Dual Filter Design】 The LV-H128 H13 HEPA Air Purifier contains dual filters. Both filters consist of pre-filter, H13 HEPA filter and...
  • 【Effectively Purify the Air】 H13 HEPA filter can effectively clean at least 99.97% of airborne particles 0.3 microns in size, like smoke,...
  • 【Quiet Sleep Mode】 In sleep mode, the noise level is as low as 28 decibels, and the sound is as soft as a whisper in a friend’s ear. And...
  • 【Suitable for Different Usage Scenarios】 Ideal for Bedroom, Office and Small Room (Coverage area 161 sq ft²/15 m²). In high-speed mode, you...
4
Philips AC0820/30 Series 800 Compact Air Purifier with Real Time...
  • 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
5
LEVOIT Smart Air Purifier for Home Bedroom, H13 HEPA Air Filter...
  • Air Quality Feedback: Intelligent Airsight Plus Sensor detects PM2.5 in the air and gives feedback by colour rings. Automatically selects the...
  • Relieves Allergy Symptoms: Powered by HEPASmart Technology and ARC Formula carbon filter, This air cleaner can effectively filter out 99.97% of...
  • Practical Coverage: This air filter can fresh air in 12 minutes with our patented VortexAir Technology and 360° air intake. Refresh the air 2x...
  • Alexa and Smart Control: Using Alexa voice command or VeSync APP, you can control your air cleaner when you need. Free your hands and enjoy your...
  • Sleep Mode & Timer: The QuietKEAP Technology keep noise levels as low as 22dB. Setting 1-12h Timer then turn off the display light to enjoy your...
6
TCL Air Purifier for Home True HEPA H13 Filter, Air Filter...
  • 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...
7
DOUHE Air Purifier for Home Bedroom Air Filter H13 True Hepa...
  • 【Three-layer HEPA Filter System】:The HEPA filter with three effective filter layers can filter 99.97% of dust, pollen, smoke and animal hair:...
  • 【With LED/UV Light Choice】:When you need a night light to illuminate your room, you can easily turn on the LED light while purifying the...
  • 【Super Quiet Sleep Mode 】:You can turn on sleep mode before going to bed or when you need a quiet environment to rest.the lowest noise level,...
  • 【Timer Setting&3-Level Wind Speed】:The timer setting can be set at 6/12/24 hours.One button,3-level speed adjustment function,when you need...
  • 【Unique Essential Oil Groove Design】:We designed a push-and-turn cover groove for adding essential oils, you can add a few drops your...
8
Levoit Air Purifiers for Home Bedroom with H13 HEPA & Carbon Air...
  • 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 HEPA filter traps 99.97% allergens like dust,...
  • 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...
9
Levoit,White Air Purifiers for Home Bedroom, Quiet True HEPA Air...
  • 100% Ozone Free: Levoit never use UV-C Light or ions which produce trace amounts of measurable ozone, a harmful air pollutant and lung irritant....
  • True H13 HEPA Filtration: Only true H13 HEPA takes efficiency. With 3-Stage filteration, our air filter removes 99. 97% of airborne particles as...
  • Larger CADR Larger Range: The professionally tested CADR reaches 102m³/h, which can purify a room up to 21m² 2 times per hour, bringing fresh...
  • Timer and 3 Speed Settings: More convinience with timer. Easily set a timer for 2H/4H/8H to auto shut-off. Choose from low, medium or high fan...
  • Gentle Night Light: Soft light design on the top brings a comfortable atmosphere. Before sleep, you can choose to turn off the lights, so you can...
10
Philips Series 2000i Connected Air Purifier with Real Time Air...
  • Powerful airflow circulation effectively covers rooms up to 79 m² and distributes clean air in every corner of the room
  • Scans the air 1000 x a second to detect ultra fine-particles. Reports the air quality in real time, and intelligently chooses the right speed for...
  • Both air quality index and the light on the UI can be dimmed and/or turned off to avoid light disturbance
  • Certified by the European Centre for Allergy Research Foundation
  • Philips purifiers go through 170 mandatory and strict inspection tests before releasing from factory. They are subjected to rigorous life and...

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 2021-12-06 / Affiliate links / Images from Amazon Product Advertising API