Seasonal allergies can be really terrible, especially if you live in an area with a lot of trees, and if you’re in a crowded city, then you get the double hit of both the allergens and the pollution. Luckily, air purifiers have become pretty cheap, and they’re a great option to snag to give you cleaner air in your home. Air purifiers work by removing the allergens and pollutants you might usually find in the air, especially if it has a HEPA filter, making it an excellent choice for those who want that extra quality of life, especially if you snag a fancy one that can work with your smart home devices.
Either way, we’ve collected some of our favorite deals below. While you’re at it, you may want to consider checking out these air conditioner deals and humidifier deals to help with other issues.
Aroeve MK01 Home Air Purifier — $38, was $50
Small, manageable, freestanding, and ready to clean, this air purifier operates at a minimal noise — of 22 decibels — and cleans up to 215 square feet of space. Enjoy cleaner, more fragrant air via HEPA filtration, which removes 99.97% of contaminants and particles. Each unit comes equipped with a 2000-hour capacity cartridge, with a red indicator light that tells you precisely when it’s time to swap out the filters and cartridge. It’s recommended to change the cartridge every 3 to 6 months.
Alrocket HEPA Air Purifier — $40, was $120
Excellent for a nightstand, the counter, or an end table. this relatively small air purifier offers cleaning for up to 215 square feet. H13 level HEPA filtration ensures that most odors and contaminants are eliminated, with microscopic particles captured, to provide relief to asthma sufferers and beyond. It is relatively simple, so there are no smart features or serious programmable modes, but that’s okay. A touch-based control panel on the top, with LED indicators, allows you to adjust the system’s timer, indicator lights, and power. You can add your essential oils or fragrances to the top to help disperse a more aromatic scent.
Morento H13 True HEPA Home Air Purifier — $124, was $220
This large and freestanding unit filters up to 1,076 square feet of space while displaying the current air quality on the included display. True HEPA filtration removes 99.97% of microscopic particles, including pet hair, pet dander, dust, and more. The double-sided air inlet ensures that it’s extremely effective, especially in an office or bedroom. You get three timer settings, four fan speeds, and automatic modes and scheduling to offer more intuitive options.
Honeywell InSight HEPA Air Purifier — $193, was $310
Designed for small to medium-sized spaces, this air purifier will cover up to 500 square feet and is recommended in our best air purifiers guide. Like other purifiers, the HEPA filtration filters out 99.97% of particles, microscopic included. Features are up to four cleaning levels, an intelligent air quality sensor, a unique InsightTM display with details available at a glance, and support for Honeywell-enhanced odor filters to help eliminate nasty scents. There’s also an auto-off timer with 2, 4, or 8-hour settings and a dimmer option for the control panel lights to remove distractions at night.
Blueair Blue Pure 211i Max Smart Air Purifier — $256, was $350
Versatile is the keyword here. It quickly cleans up to 635 square feet in about 12.5 minutes but can also clean up to 1,524 square feet in 30 minutes on the high setting. In other words, it can clean small, medium, and large-sized rooms given enough time. Above all, it does all of that quieter than comparable air purifiers, which means you can rely on this system day or night. HEPA filtration captures 99.97% of particles, with smart functionality to monitor, configure, and put you behind the cleaning controls. An intuitive LED display built into the unit tells you everything you need to know, even if you don’t have a phone or don’t want to connect one.
Shark Air Purifier 4 — $264, was $350
Sleek, sexy, and modern all describe the aesthetics of this air purifier that will blend nicely with your home decor. But more importantly, it’s capable of servicing up to 1,000 square feet with its 4-fan airflow, ultra-fast, and ultra-quiet fans. Using Clean Sense IQ technology automatically measures air quality and adjusts its operation to match — constantly cleaning when necessary. An anti-allergen HEPA filter removes up to 99.98% of large, small, and micro-sized particles, with heightened odor protection to remove strong and strange odors. A remote is included so you can control the unit from afar, like when you’re relaxing on the couch or lying in bed.
Dyson Purifier Hot+Cool HP7A — $400, was $650
The Dyson Hot+Cool HP7A uses the same technology many high quality Dyson air purifiers use to capture and filter debris from your air. It’s modestly sized but can still cover a lot of square footage. The fan blows out hot air, so you don’t have to decide between keeping warm and clean. You can set it to various different cycles, for instance, a quiet mode while you’re sleeping and a maximum mode when you’re out during the day.
Dyson Purifier Cool TP07 — $449, was $650
Ahh, Dyson. Everything Dyson makes is top-notch, including fans, hair curlers, blow dryers, and air purifiers, and that’s the reason why the brand is featured heavily in our top air purifiers for mold issues. Aside from looking cool and sci-fi, it’s a fantastic air purifier. It has a lot of power so that it can suck in micro-sized debris from far away. It uses a two-stage filtration process that traps the debris inside, and then it cycles air out through its powerful bladeless fan, cooling up to 1,000 square feet.
HEPA vs. PECO filters: What’s the difference?
You have likely heard of HEPA high-efficiency particulate air filters. A majority of air purifiers have HEPA-standard filtering. Some vacuums feature HEPA air filtering as well. These mechanical air filters force air through a very fine mesh fabric to trap impurities that get mixed in the air. To qualify as a HEPA filter, it must remove up to 99.97% of particles as little as 0.3 microns from the air. The great thing about HEPA filters is they become more efficient as the air gets dirtier, whereas electrostatically charged air filters require more frequent replacements.
PECO, or photoelectrochemical oxidation technology, on the other hand, is a kind of filter that does not give allergens, bacteria, or viruses any chance to thrive. Instead of catching these toxins, PECO utilizes light to spark a nano-coated filter and achieve a catalytic oxidation reaction. Basically, organic substances are broken down into tiny, harmless molecules. Since PECO filters don’t collect particles, they can clear pollutants about 1,000 times smaller than HEPA filters. PECO filtering purifies and disinfects the air without you having to dispose of anything.
How to choose an air purifier
There are many factors to consider when choosing an air purifier. Apart from the brand, start with the size of the room where you will use the device. You may spot some models with the AHAM Verified seal. That sale means the purifier has been independently tested and passed the quality imposed by the Association of Home Appliance Manufacturers. You can also compare the CADR (clean air delivery rate), which refers to the volume of clean air an air purifier can produce at the highest speed setting in relation to the room’s cubic footage. The higher the CADR, the faster and more efficient the air purifier is.
If you or your family members have allergies or asthma, you can also look for Asthma and Allergy Foundation of America air purifiers with this certification, which is guaranteed to reduce allergens in the air in both carpeted and hard floor rooms. Examples of Asthma and allergy-friendly certified air purifiers include designated Dyson Pure Hot + Cool models, LG PuriCare, 360, and RabbitAir Minus A2 and A3.
Since air purifiers typically run all day, factor in the cost of energy. Look for the Energy Star logo, which guarantees that the air purifier is at least 40% more energy-efficient than typical models. You’ll need to account for what you’ll spend on replacement filters or buy an air purifier with washable filters. Some air purifiers are overly noisy, so check for quiet operation or night mode statements.
There are air purifiers with specialized filters to take on particular pollutants. HEPA filters are common for handling allergens, pet dander, hair, dust mites, and pollen, while units with active carbon filters are recommended for removing odors. There are also models designed for smoke or people with multiple chemical sensitivities.
While most air purifiers promise ease of use, some units up the ante with built-in smart features. Ordinary air purifiers operate in one or two ways. Those with continuous air filtering work pretty much like a room fan; press your desired airflow speed, and it consistently moves air at that rate. Others have modes for automatic air filtering that detect impurities with air quality sensors and self-adjust to remove them from the air. Smart air purifiers allow you to track and control air quality, typically with a smartphone app. Some smart air purifiers work in conjunction with smart home systems and devices, such as those that are compatible with Amazon Alexa.
The best air purifier is simply one that best suits your needs. Supplementary features such as noise, portability, touch programs with LED indicators, timers, remote, or smart functions are secondary to room size and the appropriate filtration system. Air purifiers can improve indoor air quality by eliminating allergens that are floating in the air.
Looking for more ways to upgrade your home’s cleanliness? Check out what we have on robot vacuums for your dust-ridden floors, steam cleaners, smart home hubs, and more on our curated deals page.