Do air purifiers help you sleep better?
Let’s look at the facts.
At least one in every five people has allergies (1).
Allergy flare-ups cause congestion and other respiratory problems.
But the best bedroom air purifiers remove pollen, mold, dander, and other allergens from the air.
When you can breathe easier without a stuffed-up or runny nose, you’ll sleep better, too.
- Air Pollution Causes Poor Sleep
- How Air Purifiers Make It Easier to Breathe
- How to Find the Right Air Purifier for Your Bedroom
- Airflow Is Key
- Also Consider These Features
- Coway AP-1512HH Mighty Air Purifier
- Austin Air B402B1 Bedroom Machine Air Purifier
- RabbitAir BioGS 2.0 Ultra Quiet HEPA Air Purifier
- IQAir [HealthPro Plus Air Purifier] Medical-Grade Air [HyperHEPA Filter]
- IQAir [Atem Desk Personal Air Purifier [HyperHEPA Filter]
- Blueair Classic 205 Air Purifier with HEPASilent Filtration, ALEXA compatible
- Germ Guardian True HEPA Filter Air Purifier
- LEVOIT Air Purifier for Home with HEPA Filter
- LEVOIT Air Purifier for Smokers Allergies and Pets Hair, True HEPA & High-Efficiency Carbon Filter
- Dyson Pure Cool, TP01 HEPA Air Purifier & Fan
- Alen BreatheSmart FIT50 Air Purifier for Bedrooms
- LEVOIT Smart WiFi Air Purifier
- Winix 5300-2 Air Purifier with True HEPA, PlasmaWave and Carbon Filter
- PARTU HEPA Air Purifier
Air Pollution Causes Poor Sleep
Unfortunately, it’s not just dust and allergens that cause you to lose sleep.
Other pollutants like small particulates (PM 2.5) and gases like NO2 (nitrogen dioxide) interfere with your rest (2).
Symptoms are more severe for those with asthma, respiratory illnesses, and cardiovascular disease.
With wildfires happening more often, air pollution is affecting more people these days.
How Air Purifiers Make It Easier to Breathe
Typically, air purifiers use a fan to draw air through a filter to screen out pollutants like allergens.
Most of them use a HEPA filter to mechanically remove 99.97% of particles larger or equal to 0.3 µm (3).
But regular HEPA air purifiers don’t get rid of odors or gases, so they often have an activated carbon filter as well.
They may also have a pre-filter that catches pet hair or dust.
As a result, when you purchase an air purifier, you can be sure of two things.
One is that you’ll need to replace filters on occasion. Depending on usage, it could be every few months or every couple of years.
And two, if you’ve never used one, you’re going to love having an air purifier because you will breathe easier like never before.
How to Find the Right Air Purifier for Your Bedroom
The most important factor when shopping for an air purifier is to know the size of the room where you plan to use it.
Measuring the room now will save you hassle and disappointment later. Go get your measuring tape. Don’t worry; I’ll be right here when you’re done.
Okay, now that you’ve multiplied the length by the width and you know how many square feet you need to cover, you’re ready to continue.
Airflow Is Key
With respect to air purifiers, it’s always better to err on the side of bigger. If you have a 200 ft.² bedroom, and you purchase an air purifier designed for rooms measuring 300 ft.² or more, you’ll be pleased with how well it works. You may never need to put it on the highest setting.
Air purifiers are rated for the entire size of the room as well as airflow. For example, here’s an example of CFM (cubic feet per minute):
CFM = Length x Width x Height x (Air Changes per Hour) divided by 60 minutes
200 CFM = 10 x 20 x 10 x 6 / 60
Therefore, this would be an air purifier that can exchange six roomfuls of air per hour.
CADR is another way to help you choose the best air purifier for your home. It stands for Clean Air Delivery Rate.
The higher the number, the better the filtration.
Also Consider These Features
Besides looking at the capacity of the air purifier, you’ll want to consider other features and facts.
First, how noisy is it? If you’re a light sleeper, never purchase an air purifier that makes more than 30 dB of noise.
Second, are you prepared to support the long-term costs? This includes replacing the filters and paying for the electricity. Happily, most air purifiers don’t use a lot of power.
Third, are there multiple speed settings? Does it have built-in sensors? Is there a remote control or a timer?
These are all factors that may influence your decision.
Now let’s look at the top bedroom air purifiers to help you find what you need.
Coway AP-1512HH Mighty Air Purifier
Coway’s Mighty Air Purifier is a top pick for many online review sites and magazines.
It provides good performance, has convenient features, and isn’t very expensive or difficult to maintain.
Although there are different models, the one we selected covers rooms up to 361 ft.². It has a CADR of 246 for dust, 240 for pollen, and 233 for smoke.
There are four stages to the filtration system. The pre-filter catches large particles and dust, and it’s washable. Then there is a deodorizer that removes cooking odors and reduces volatile organic compounds.
Next, a True HEPA filter captures 99.97% of particles like pollen and pollutants. Finally, there’s also a Vital Ion filter.
Choose from three fan speeds or auto mode. The automatic mode drops to eco-mode to save energy if no pollution is detected for half an hour.
In fact, the purifier has a colored LED to show you how clean your indoor air is.
Also, there is a timer and a filter replacement indicator light.
It’s rated for 77 W power consumption and 24.4 to 53.8 dB depending on the speed setting.
Austin Air B402B1 Bedroom Machine Air Purifier
Austin Air is the manufacturer of possibly the best air purifier for asthma. The airflow is a generous 250 CFM.
It has five-stage filtration which includes a medical-grade HEPA filter and a HEGA carbon cloth. The latter clears away gases, odors, chemicals, viruses, and bacteria.
Two separate clinical trials proved how effective this model is at removing pollutants.
As you can imagine, this air purifier sold well during the terrible wildfire season on the West Coast.
RabbitAir BioGS 2.0 Ultra Quiet HEPA Air Purifier
American-based company RabbitAir has won design awards from Germany Red Dot, Chicago Athenaeum, and Japan. They’ve been in business for more than a decade.
The BioGS 2.0 air purifier is the next generation of air filtration. It has a super quiet motor with five speed settings. On the lowest speed, you’ll barely know it’s running. It’s also Energy Star-certified.
The four-stage filter purifies and deodorizes the air. In a room up to 550 ft.², it can exchange the entire volume of air twice in an hour on the highest setting.
IQAir [HealthPro Plus Air Purifier] Medical-Grade Air [HyperHEPA Filter]
IQAir has a premium solution for environments where air purity is crucial.
The HealthPro Plus purifier has a HyperHEPA filter that stops ultrafine particles down to 0.003 microns, ten times smaller than a virus. That’s why it’s medical-grade and 100 times more effective than a HEPA air filter.
This model can handle rooms up to 1125 square feet.
On the lowest speed, this energy-efficient purifier only uses 27 Watts of energy. On high, it consumes 215 Watts.
The clean air flows out in a 320° area, almost a full circle.
The air purifier is programmable and will notify when it’s time to change the filter.
IQAir [Atem Desk Personal Air Purifier [HyperHEPA Filter]
When you travel, work in your office, or rest at night, the portable Atem purifier from IQAir will provide you with quiet, ultra-clean airflow. It has a HyperHEPA filter as well.
It fits on a desk or bedside table.
Blueair Classic 205 Air Purifier with HEPASilent Filtration, ALEXA compatible
BlueAir is another trusted name in air purifiers. Their Classic 205 model is perfect for rooms up to 279 ft.².
Moreover, it’s Wi-Fi-enabled and compatible with Amazon’s Alexa. These features allow you to control it through the Blueair app and voice commands. The app will keep you up-to-date on air quality.
If you purchase the SmokeStop filter, which is sold separately, it eliminates odors and smoke caused by wildfires.
There are three fan speeds, one of which is whisper-quiet for sleeping. The sound level ranges between 32 to 56 dB, no louder than a refrigerator.
The Certified Clean Air Delivery Rate (CADR) is 180 ft.³ per minute at five air changes per hour. That’s impressive!
Germ Guardian True HEPA Filter Air Purifier
The Germ Guardian is best for small rooms like a child’s bedroom or nursery. It covers up to 78 ft.²
The biggest selling point is that it comes with an optional UV-C light to kill airborne viruses like the flu and colds.
It also reduces volatile organic compounds (VOCs) like formaldehyde and odors from pets or cooking.
The company offers a one-year warranty.
LEVOIT Air Purifier for Home with HEPA Filter
Levoit sells various air purifiers. This one has an affordable price and it uses inexpensive replacement filters.
It resembles a desktop speaker with its compact size and cloth prefilter on the front.
There is a three-stage system with a HEPA filter plus activated carbon. On its lowest setting, it puts out 32 dB of noise. Plus, there are no display lights.
LEVOIT Air Purifier for Smokers Allergies and Pets Hair, True HEPA & High-Efficiency Carbon Filter
Next, Levoit also sells the LV-H132 air purifier that operates at only 25 dB. That’s quieter than the ambiance of the library.
You can use it as a nightlight or turn the light off completely.
The True HEPA filter, prefilter, and activated carbon filter remove pollutants like airborne dust, mold, dander, smoke, and more. It circulates room air in a medium-sized space four times per hour.
It also has improvements regarding efficiency and lifespan. It’s FCC-certified and ETL-listed for safety. Moreover, it will remind you when it’s time to change the filter.
Finally, the company offers a two-year warranty.
Dyson Pure Cool, TP01 HEPA Air Purifier & Fan
Dyson combined an air purifier with their famous bladeless fan and this product is the result. It will cool you down with purified air.
The HEPA filter and activated carbon removes pollutants like paint fumes, bacteria, and pollen.
The purifier features a sleep timer, the ability to oscillate, and ten speed settings. It’s certified asthma and allergy-friendly.
The company anticipates that you’ll need to replace the filter if you use it 12 hours a day every day for a year.
Alen BreatheSmart FIT50 Air Purifier for Bedrooms
Alen’s BreatheSmart air purifier can match any décor when you choose from 14 designer panels.
It has a sensor with lasers that detects airborne particles. Then it displays your indoor air quality. If you let it run on auto mode, it takes care of the problem all by itself.
The FIT50 model cleans 900 ft.² every half hour. On low, that’s 110 CFM, and 231 CFM on high with a CADR of 220.
It’s perfect for eliminating everything from pet urine odor to wildfire smoke. In fact, you can choose from three different HEPA filters. The Silver has an extra layer of protection against mold and mildew and bacteria. Then the Fresh Plus version gets rid of fumes and smoke.
The air purifier runs quietly and even has soothing pink noise tones to improve sleep.
LEVOIT Smart WiFi Air Purifier
How would you like it if your air purifier can calculate the real lifespan of its filters?
Levoit’s smart purifier can do just that. You can view details on the app, which turns your smartphone into a remote control.
It’s Wi-Fi-connected and compatible with the Google Assistant, Alexa, and the Internet of Things IFTTT protocol.
But the interconnectivity isn’t just a ruse to get your attention. This purifier has a CADR of 135, and it can change the air in a 360 ft.² room four and a half times per hour. But it runs nearly silently at just 27 dB.
Winix 5300-2 Air Purifier with True HEPA, PlasmaWave and Carbon Filter
Winix’s 5300-2 purifier has three-stage filtration and five power settings. The lowest, or sleep mode, does 35 CFM, but the highest achieves 240 CFM at 27. 8 dB. It’s best suited to a maximum of 360 ft.².
One unique feature is the PlasmaWave layer of filtration which breaks down chemical odors without producing ozone.
PARTU HEPA Air Purifier
Let’s wrap up with the least expensive but still effective air purifier that we found. It comes with a 24-month buyer assurance and lifetime support promise.
The three-stage filter incorporates activated carbon and HEPA filtration. Plus, you can take advantage of the “fragrance sponge.” Dampen the sponge, add a couple of drops of essential oil, and place it below the air outlet for little aromatherapy.
This compact purifier is only effective up to 107 ft.². The noise level ranges between 38 to 59 decibels, so it’s nowhere near the quietest. On the other hand, if you enjoy white noise while sleeping, it’ll be right up your alley.
I hope you discovered the best air purifier for your bedroom today.
Remember to take into account not just the price of the purifier, but also the cost of replacement filters.
Then may your new purifier help you sleep peacefully and breathe easy.
1. https://www.sleepfoundation.org/articles/cant-sleep-these-allergens-might-be-reason-why accessed September 26, 2020
2. https://www.sciencedaily.com/releases/2017/05/170522080830.htm by the American Thoracic Society, published May 22, 2017, accessed September 26, 2020
3. https://en.wikipedia.org/wiki/HEPA accessed September 26, 2020