'Clean air ninja': The stellar Coway air purifier is $140 (an all-time low) for Black Friday

You don’t need to suffer from allergies or asthma to benefit from an air purifier. Indoor air can be a lot dirtier than you think. Depending on where you live, it can be full of dust, pollen, pet dander and various other pollutants. Not only are air purifiers fantastic for getting rid of airborne particles, but they can also capture airborne viral pathogens, which means you’re less likely to get sick. One of the best air purifiers on the market is the Coway Airmega True HEPA Air Purifier, and during Amazon's Black Friday sale you can snag it for just $140 (down from $230).

Want to save even more? Then be sure to check out our roundup of the best Amazon Black Friday deals, along with our guide to all things Black Friday for expert shopping insights.

Amazon

Coway Airmega True HEPA Purifier

$140$230Save $90

This top-seller has a four-stage filtration system that can capture and reduce up to 99.97% of particles, including those of volatile organic compounds and odors in addition to the standard pollen and pollutants.

$140 at Amazon

Explore More Buying Options

$230 at Target$150 at Woot

Why is it a good Black Friday deal?

We've yet to see this popular model dip below its current price, so if you want to snag it at its all-time low, our advice would be to add it to your cart, stat. Plus, having cleaner air in your home is pretty priceless, and this model is among the best money can buy.

Why do I need this?

Not only is the Coway Airmega incredibly powerful, but it's also silent. It features a washable pre-filter and a replaceable True HEPA filter. The LED glows different colors depending on the quality of your air, and the auto mode automatically optimizes the fan speed according to that quality level.

One Yahoo Life writer swears by this model, calling it "sleek, glossy and a far cry from other bulky air filtration appliances." She went on to say, "At just 12.5 pounds, it's easy to move around my house if needed, and its slim profile fits into small spaces to save some floor space. (It would be great if it had a handle, but that's not a dealbreaker.) It's the perfect size for my home's needs, and I'll often keep it downstairs while I'm working, and upstairs for sleeping. Speaking of sleeping, there's no official 'sleep mode,' but it's barely audible when on the lowest setting. I even find its hum at full speed quite soothing and barely notice it now, so as far as noise levels are concerned, it gets an A+ from me." (Check out her full Coway Airmega Air Purifier review for more!)

What reviewers say

"Best purifier money can buy," said an allergy sufferer. "I have horrific allergies, and in addition to pollen, I am extremely sensitive to mold and smoke. This air cleaner tackles it all! My nose and sinuses thank me daily."

"Improved my life!" wrote a five-star reviewer. "I have never had an air purifier before, but this thing really showed me how much better life can be ... I would wake up with a sore throat and would cough and hack in the morning ... I bought this air purifier and it has drastically changed how I sleep at night and how I feel in the morning. I would snore a lot (according to my wife) and ever since I got this air purifier I don't snore as much. I also wake up feeling better overall."

"Clean air ninja!" exclaimed a satisfied user. "The Coway is highly effective. During the spring when pollen counts are highest, the unit keeps my indoor air noticeably cleaner. I rarely need to take OTC allergy meds, and my dogs no longer have watery eyes. On the low setting, the Coway is silent. I have two units running now on opposite ends of a really large open family room/kitchen space and I can't hear them ... This is an excellent air purifier — the best of many that I have tried."

Thousands of shoppers say that the Coway Airmega is the most sensitive air purifier they've ever owned. This reviewer was ecstatic about how well it removes unpleasant odors: "It's very sensitive and kicks on when I cook, even though it isn't in the kitchen. In fact, it's so sensitive that a dog fart has been known to get it going to filter the air. If that's not a selling point, I don't know what is."

"My only complaint is the sensor light," shared a final shopper. "I'm not too bothered by it because I don't have this unit in my bedroom, but as others have stated, there should be an option to turn it off completely, as it's very bright, and blue light in general is unfavorable when trying to sleep." (Psst: These blackout LED covers were designed to dim bright lights on electronics, and they're super affordable.)

Amazon

Coway Airmega True HEPA Purifier

$140$230Save $90

Over 19,000 Amazon shoppers gave it a perfect rating — and you'll love it, too!

$140 at Amazon

Explore More Buying Options

$230 at Target$219 at Sylvane

If you have Amazon Prime, you’ll get free shipping, of course. Not yet a member? No problem. You can sign up for your free 30-day trial here. (And by the way, those without Prime still get free shipping on orders of $25 or more.)

The reviews quoted above reflect the most recent versions at the time of publication.

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Your Black Friday Shopping Guide: See all of Yahoo’s Black Friday coverage here. Follow Engadget for Black Friday tech deals. Learn about Black Friday trends on In the Know. Hear from Autoblog’s experts on the best Black Friday deals for your car, garage and home, and find Black Friday sales to shop on AOL, handpicked just for you.