This air purifier is helping keep my home's air free of wildfire smoke - and it's on sale
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Home & Office Why you can trust ZDNET : ZDNET's expert staff finds the best discounts and price drops from reputable sellers on a regular basis. If you buy through our links, we may earn a commission. Our process 'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing.When you click through from our site to a retailer and buy a product or service, we may earn affiliate commissions. This helps support our work, but does not affect what we cover or how, and it does not affect the price you pay. Neither ZDNET nor the author are compensated for these independent reviews. Indeed, we follow strict guidelines that ensure our editorial content is never influenced by advertisers.ZDNET's editorial team writes on behalf of you, our reader. Our goal is to deliver the most accurate information and the most knowledgeable advice possible in order to help you make smarter buying decisions on tech gear and a wide array of products and services. Our editors thoroughly review and fact-check every article to ensure that our content meets the highest standards. If we have made an error or published misleading information, we will correct or clarify the article. If you see inaccuracies in our content, please report the mistake via this form. Close Home Home & Office Smart Home This air purifier is helping keep my home's air free of wildfire smoke - and it's on sale Get cleaner air for less with the Blueair Blue Pure 211i Max air purifier for 20% off on Amazon right now. Written by Allison Murray, Senior EditorSenior Editor July 17, 2026 at 9:39 a.m. PT Allison Murray/ZDNETBlueair Blue Pure 211i Max Air Purifier for $280 (save $70 with coupon) 20% off 3/5 Editor's deal rating View at Amazon Follow ZDNET: Add us as a preferred source on Google.Right now, 18 states are experiencing poor air quality due to wildfire smoke drifting south from Canada and northern Minnesota. The air quality index for some cities has reached hazardous levels, which means even minutes of being outside could cause intense coughing, wheezing, and irritation of the eyes, throat, and lungs.Also: I tested this backup power station during a real blackout - don't make my mistakesI live in Illinois, where the air quality was the worst in the world yesterday. An air purifier is a must-have if you live in the impacted area, and you can get the Blueair Blue Pure 211i Max Air Purifier in the large size for $70 off on Amazon with a coupon. I've owned this model for years, and it's been doing a good job at keeping our home's air clean over the past few days. 20% off Blueair Blue Pure 211i Max Air Purifier for $280 (save $70 with coupon) View at Amazon Since introducing the Blueair air purifier into our living room a few years ago, we've seen a significant reduction in the amount of hair that accumulates. The real-time LED indicator provides constant reassurance about the air quality, displaying statuses such as excellent (blue), moderate (orange), or polluted (red). Also: This smart pet fountain is like a Brita for cats - here's whyBlueair says this air purifier removes 99.97% of airborne particles, including viruses and bacteria, dust, pollen, pet dander, and mold. This particular model can clean spaces up to 1,524 square feet in 30 minutes or 635 square feet in about 12.5 minutes when on the highest setting. Plus, it's super quiet with a decibel rating of 23-53dB -- we only really notice the sound getting loud when it's turned onto the highest setting. I highly recommend an air purifier -- especially the Blueair Blue Pure 211i Max -- to everyone looking to breathe cleaner air this summer, even in unexpected climate conditions. How I rated this deal I rated this 20% off deal a 3/5 Editor's deal rating based on ZDNET's system. I have personally tested this product, so my rating and recommendation are based on my daily use. When will this deal expire? Deals are subject to sell-out or expire at any time, though ZDNET remains committed to finding, sharing, and updating the best product deals for you to score the best savings. Our team of experts regularly checks in on the deals we share to ensure they are still live and obtainable. We're sorry if you've missed out on this deal, but don't fret -- we're constantly finding new chances to save and sharing them with you at ZDNET.com. Show more How do we rate deals at ZDNET? We aim to deliver the most accurate advice to help you shop smarter. ZDNET offers 33 years of experience, 30 hands-on product reviewers, and 10,000 square feet of lab space to ensure we bring you the best of tech.Last year, we refined our approach to deals, developing a measurable system for sharing savings with readers like you. Our editor's deal rating badges are affixed to most of our deal content, making it easy to interpret our expertise to help you make the best purchase decision.At the core of this approach is a percentage-off-based system to classify savings offered on top-tech products, combined with a sliding-scale system based on our team members' expertise and several factors like frequency, brand or product recognition, and more. The result? 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