(Last Updated On: July 7, 2021)

5 Best Air Purifiers for Sleep

Find the Best Air Purifiers That Will Give You a Good Night’s Sleep

air filter for pet allergies from dogs

By Jaimie Hart

12 min read

Adults need at least seven hours of sleep each night to achieve the most significant health and wellbeing. To ensure that you’re sleeping soundly and refreshed for the day ahead, you must minimize distractions in your bedroom. An air purifier can help you breathe easier and stay comfortable for a sound sleep due to the ability to filter out harmful allergens and air particles that often keep us from falling asleep.

How to sleep better

Top Pick

Alen BreatheSmart 45i
Air Purifier
$430 Buy Now

Products in this article are independently selected and featured editorially. If you make a purchase using these links we may earn commission.  How We Rate

Best
Alen BreatheSmart
45i with Carbon
Air Purifier

$430 Buy Now
2nd Best
Rabbit Air
BioGS 2.0
Air Purifier

$400 Buy Now
Better
Coway
Airmega HEPA
Air Purifier

$224 Buy Now
Good
Whirlpool
Whispure HEPA
Air Purifier

$340 Buy Now
2nd Good
Sharp
Plasmacluster Ion
Air Purifier

$203 Buy Now
Best
Alen BreatheSmart 45i Air Purifier $430 Buy Now

Pros

2.4 lbs of carbon with a “Wildfire” filter
H13 grade of HEPA
Multiple color options: White, Expresso, Graphite, and more
Sleep Score.com certified, proven to produce better sleep
Lifetime warranty
Great value

Cons

Weight
Features and Specs
  • Dimensions: 8.5 x 15 x 25 inches
  • Weight: 21.4 pounds
  • Four-stage filtration system
  • Medical-Grade True HEPA filter and B4-Pure filter
  • 800 square feet room coverage
The Alen BreatheSmart 45i Air Purifier is a sleek and sophisticated air purifier that can clean bedrooms up to 800 square feet in size every 30 minutes. It’s True HEPA filter can remove airborne particles including allergens, dust, orders, pet dander, bacteria, and mold spores. It also comes with a HEPA Silver filter, which helps kill airborne bacteria, germs, viruses, and more. Additionally, the Alen BreatheSmart 45i’s Laser Smart Sensor can not only detect airborne particles, but also automatically adjusts to your environment. With four fan speed options, its WhisperMax Technology allows you to sleep peacefully. Moreover, its LED color display allows you and your loved ones to check the air quality at a glance.
2nd Best
Rabbit Air BioGS 2.0 Air Purifier $400 Buy Now

Pros

24/7 lifetime technical support
BioGS HEPA filter and Activated Charcoal filter captures 99.97 percent of airborne particles as small as 0.3 microns
Energy Star rated

Cons

One-color option: white
Features and Specs
  • Dimensions: 16.6 x 9.8 x 22.2 inches
  • Weight: 16.8 pounds
  • Energy Star Rated
  • 625 square feet room coverage
The Rabbit Air BioGS 2.0 air purifier cleans bedrooms up to 625 square feet twice every hour. As an Energy Star-rated air purifier, the Rabbit Air BioGS 2.0 is very quiet. It also comes with a four-stage filtration system, washable pre-filter, and childproof feature, which pauses the air purifier's operation when you remove the front panel. It also comes with a five-year warranty as well as 24/7 lifetime support. 
Better
Coway Airmega 1512HH Air Purifier $224 Buy Now

Pros

Coway IoCare Mobile App
True HEPA filter and Activated Charcoal filter captures 99.97 percent of airborne particles as small as 0.3 micron
Multiple color options: Black, Brown

Cons

Covers up to 325 Sq Ft
Features and Specs
  • Dimensions: 22.5 x 22.2 x 12.4 inches
  • Weight: 19.76 pounds
  • Three-stage filtration system
  • Energy Star Rated
  • 325 square feet room coverage
The Coway Airmega Air Purifier expertly cleans the air in bedrooms up to 325 square feet. This energy-efficient air purifier includes both a True HEPA filter and Activated Charcoal filter, which captures airborne particles including pollen and other allergens. The Coway Airmega also comes with a washable and permanent pre-filter to catch particles larger than0.3 microns. Its Coway IoCare mobile App allows you to monitor the air quality indoor and outdoor. You can also use the app to control speed, use smart control mode, get filter notifications, and much more. Additionally, the air purifier works with Alexa, comes with a pollution sensor, which shows indoor air quality in real-time, and has three fan speeds as well as an auto mode.
Good
Sharp Plasmacluster Ion Air Purifier $203 Buy Now

Pros

Low noise operation
True HEPA filter captures 99.97 percent of airborne particles as small as 0.3 microns
True HEPA and active carbon filters last up to two years

Cons

One-color option
Features and Specs
  • Dimensions: 8.2 x 15.1 x 21.3 inches
  • Weight: 11 pounds
  • Three-stage filtration system
  • True HEPA filter eliminates airborne particles traditional filters cannot trap
  • 259 square feet room coverage
The Sharp Plasmsacluster Ion Air Purifier comes with a high-efficiency HEPA filter and 15 pounds of activated Carbon to eliminate odors and harmful chemicals in the bathroom. The unit’s three-stage filtration system includes a long-life True HEPA filter and Activated Carbon filter, which captures up to 99.97 percent of airborne particles as small as 0.3 microns. With a coverage area of 259 square feet, the Sharp Plasmacluster Ion air purifier is whisper quiet and has a Plasmacluster Express Clean mode, which provides an extra boost of cleanness. Additionally, the Sharp Plasmacluster Ion air purifier comes with a washable pre-filter for larger airborne particles, which helps extend the overall life of your filters. 
2nd Good
Whirlpool WPPRO2000B Whispure $339 Buy Now

Pros

Turbo Mode clears the air quickly
True HEPA filter captures 99.97 percent of airborne particles as small as 0.3 microns
Three color options: Slate Black, Pearl White, and Gunmetal

Cons

Weight
Features and Specs
  • Dimensions: 19.45 x 10.08 x 25.08 inches
  • Weight: 22.44 pounds
  • 328 Clean Air Delivery Rate (CADR)
  • Four fan speeds
  • Whisper Quiet
  • 508 square feet room coverage
The Whirlpool WPPRO2000B Whispure air purifier not only operates quietly with its Whispure Quiet technology but can operate even quieter by turning on Sleep Mode. This helps to ensure you and your family can enjoy quality time without being disturbed. Even better, the WPPRO2000B effectively cleans the air in bedrooms up to 508 square feet nearly five times every hour with its True HEPA filter. This filter expertly captures 99.97 percent of airborne particles as small as 0.3 microns, while a charcoal pre-filter not only traps odors but also pre-cleans the air. This helps to eliminate dust, mold spores, smoke, pollen, pet dander, and more. Additionally, the Whirlpool Whispure air purifier has four fan speeds, electronic controls (Smart Screen Touch, an Air Quality monitor, filter replacement lights, Night Light, Magnetic Latch Front Grill), built-in VOCs sensor, and automatically adjusts to eliminate harmful airborne pollutants. Ultimately, the Whirlpool WPPRO2000B Whispure is the best-bet with its HEPA filtration system and high Energy Star rating, which means it effectively removes airborne particles from the air. It also comes with a five-year limited warranty.

How Can an Air Purifier Improve Sleep?

The quality of both sleep and the air around you significantly affect your health. You’re at risk of illness and sleep disruptions if you spend your night inhaling dust, allergens, and harmful chemicals. Harmful air particles create difficulty breathing, inflammation, viruses, and many more symptoms.

If you’re wondering how to sleep better even if you’re in optimal health, one answer is an air purifier. An air purifier improves your sleep health by filtering out pollutants in the air, making it difficult to fall asleep and stay well-rested. The HEPA filter traps particles of all sizes to reduce allergens and bacteria, while activated carbon can adsorb odors and harmful chemical gases such as wildfire smoke.

To achieve deep sleep, you need to make sure that there’s no opportunity for any distractions in the middle of the night, so you’ll specifically want to find an air purifier that operates at a low decibel level or has a sleep mode. Many air purifiers offer you the multitude of benefits of sleep specifically. The best air purifiers for rest include soothing sounds and reduced allergy symptoms that help you fall asleep fast to achieve the recommended seven to eight hours of sleep you need each night.

In fact, air purifiers with pink noise — such as the Alen BreatheSmart 45i — help reduce distracting noises that interrupt your sleep, including loud talking or someone snoring. Pink noise instead provides low, relaxing background noise, helping you fall asleep faster and improving the depth of your sleep. Ultimately, this means you’ll get the necessary rest you need to feel rejuvenated and tackle the coming day.

Recommendations for Selecting an Air Purifier For Sleep

✓ Find an air purifier that’s light and compact if you’re taking it to multiple rooms or plan on traveling with it
✓ Look for certified true HEPA filters and activated carbon if you want both particle and odor removal
✓ Check for a limited warranty 
✓ Don’t use an ozone or ionizer air purifier if you want less harmful impacts to the environment
✓ Check the product’s dimensions to make sure it fits in your bedroom
✓ Find an air purifier with a low decibel rating for quiet filtrations and minimal noise distractions
✓ Double-check that the air purifier covers the square footage of your bedroom
✓ Find an air purifier with 15 pounds or more of activated carbon if you live in a wildfire zone