The Best Home Air Purifiers For Allergies & Pollution
Tiny Machines Making a Big Difference for Our Respiratory Health
According to the EPA, the concentration of pollutants like pollen and mold are often two to five times higher indoors than they are outside. And given that we spend more than 90 percent of our time inside, we want to ensure that our space is as clean as possible, especially if we suffer from allergies, asthma, or other respiratory illnesses (like recovering from COVID-19). In this case, we recommend looking into a home air purifier.
Looking for other ways to improve your breathing and health? Check out our tips for naturally boosting your immune system!
How Do Air Purifiers Work?
The simplest way to think of an air purifier is like a colander or sifter: When you’re draining pasta, for example, the slits allow the water to come through while still holding on to the food. The same applies to an air purifier. Using an internal fan, the machine sends air through a filter, trapping pollutants, irritants, and even odors. Clean air is then released. This process continues throughout the day to ensure you’re circulating the freshest air. Some air purifiers also use electronic technology that ionizes particles and traps them. However, this can lead to ozone emissions, so it’s important to do research to see what best fits your needs.
Whichever style you prefer, air purifiers can catch all kinds of irritants, including pollen, pet dander, mold, smoke, dust mites, pesticides, ozone from air cleaners, VOCs (volatile organic compounds) from chemicals, and even radon.
The Health Benefits of Air Purifiers
If you have pets or are near smokers, you may understand firsthand how badly allergies can act up in enclosed spaces. In the short term, pollutants can cause asthma-like symptoms like irritation of the eyes, nose, and throat or headaches, and—in the long term—even respiratory diseases. So alongside regular cleaning and strong ventilation, air purifiers can be a real game-changer to remove those potent allergens and irritants.
Note: While air purifiers can soothe allergies or asthma-related issues, it may not be a cure-all for your specific health needs. Please consider reaching out to your primary care doctor for long term relief.
What To Shop For
To begin, think about the size of your space. Are you looking for a portable home air purifier to use between your bedroom and office, or one standalone machine for an entire apartment? Some options work for 20 square feet spaces while others work across 1,000 square feet. Some homes even need multiple air purifiers, so consider your overall quantity first.
Once you have a sense of your needs, decide which kind of air filter or system you want. The most effective filters are called High Efficiency Particulate Air (HEPA) filters, which have multiple layers of screening to capture even the tiniest particles. Some filters are made of paper, fiber (like fiberglass), or mesh, and almost all of them require regular maintenance every few months. If you’re looking for filters that remove odors and smoke as well, look into an activated carbon filter to help neutralize those pollutants. Ideally, set aside a budget for regular refills for whichever filter you choose as well as how much electricity the purifier will use—especially if it’s always running.
When it comes to quality, look at the Clean Air Delivery Rating (CADR), or the cleaning speed. While industry standards vary on the optimal range, we recommend generally looking for CADRs of 100+, with a score above 350 being extremely effective. (Generally speaking, a purifier should be able to remove at least 99.97 percent of particulates measuring 0.3 microns or more, which is to say, it should capture almost anything the eye can see.)
Lastly, consider any certifications, sustainability, and safety ratings like the Association of Home Appliance Manufacturers (AHAM) verification. If an air purifier is reputable, it will likely have this verification or, at the very least, strong CADR ratings.
Now that you have the 101, it’s time to check out some of the best and most sustainable home air purifiers on the market. These five brands (and an all-natural bonus 😉 ) will have you breathing easier in no time.
Purifies Up To | 190 square feet Eco-Friendly Features | ENERGY STAR rated, activated carbon filter, certified for ozone emissions and electrical safety, AHAM Verifide Brand Ethics | Gives back Price | $119.99
Get (or give!) a better night’s sleep with Blueair’s Blue Pure 411 air purifier. Equipped with a HEPA double filtration system, activated carbon filter, and LED display, this purifier has a CADR between 95-125 cfm, so it’s ideal for small spaces, catching everything from foul odors to pollen and dander. Even if you use it around the clock, the filter only needs to be replaced twice a year. Hit the one-touch auto mode, and almost immediately, you’ll notice a difference. Blueair also carries home air purifiers that service anywhere between 100-600+ square feet.
Purifies Up To | 600 square feet Eco-Friendly Features | Ozone-free Brand Ethics | Gives back Price | $799
While most air purifiers seek to attract ultra-fine particles to a filter, Molekule aims to destroy pollutants all together with its PECO purification technology. Family-founded and operated, Dr. Yogi Goswami and his two children started the company when co-founder Dilip suffered from asthma and allergies. Today, the company shares its innovative tech with businesses, medical institutions, and consumers looking for fresher air. With four different options for various sizes, we love the Air, which can work in spaces of up to 600 square feet.
3. Rabbit Air
Purifies Up To | 700 square feet Eco-Friendly Features | ENERGY STAR certified Brand Ethics | Gives back Price | $549.95
If you’re more concerned about certain pollutants over others (i.e., animal dander), you’ll like Rabbit Air’s customizable MinusA2 air purifier. In addition to catching common pollutants like dust mites, mold, and bacteria, the purifier’s specific filters trap and remove irritants like foul odors or toxins. Several models are also WiFi-enabled and work with Alexa or Bluetooth connections, so you can keep things running even when you’re not in the room. With CADR levels at 200 cfm, a Rabbit Air purifier is sure to be a worthwhile investment.
Purifies Up To | 400 square feet Eco-Friendly Features | 100 percent renewable filters, ozone-free, plastic-free Brand Ethics | Natural and biodegradable materials only Price | £349
For an extra sustainable option, the brand new Briiv is a Kickstarter-backed air filter made entirely from natural and biodegradable materials like coconut, moss, and wool that trap specific irritants. Once the plastic-free filters are used up, they naturally degrade over time. Plus, it works well with technology, too, running on a 5V USB and compatible with apps like Alexa and Google Assistant. No watering, waste, or real effort is needed. New orders will ship out beginning March 2021.
Purifies Up To | 50–1,000 square feet Eco-Friendly Features | Some are plastic filter-free and come with certifications Brand Ethics | USA-owned Price | $199–$999
Based in Colorado, Nancy and Randall Berry are the team behind Wellquest, one of the only online distributors focused solely on air purifiers and monitors. With a vetted selection, this small business offers incredible customer support and insights into what your home needs most, including a collection of eco-friendly air purifiers from brands like Airdog and Stadler Form. Whether you’re looking for a budget purifier or one for your 1,000+ square foot space, Wellquest has sustainable options, alongside free shipping and a price match guarantee.
Bonus: Plants! 🌱
Of course, we’d be remiss to not mention the most natural air purifier: Plants! Plants like ivy, spider and snake plants, and even aloe vera can help clear the air. Check out our favorite online plant shops here, and then head to our indoor houseplant guide to learn how to care for them!
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