It’s that time of year again. The days are getting shorter, the thermostats are dropping and you might be ready to shut your windows for fall.

But staying inside also means missing out on the fresh air — and beyond warnings of wildfire season on the horizon and typical fall allergies — now also happens to be a great time to save money on an air purifier on Amazon.

The popular COWAY Air Purifier is designed to purify the air in spaces fast — up to 1,748 square feet — in just 60 minutes, to be exact. And, ahead of October Prime Day (which officially kicks off on Oct. 6), it’s on sale for $70 off. Users say it’s not only easy to operate, but also makes a “huge difference” in the air quality in their homes.

“I purchased this on Black Friday after we got a Christmas tree and began sneezing like crazy!” one user raved. “Plugged this in, and within a few minutes could finally breathe again.”

Beyond helping with allergies, this reviewer (and many others) has also pointed out that the COWAY filter helps with congestion — “I move into my bedroom every night and have noticed that I do not get nasal congestion like I used to. It has truly helped!”

The COWAY design combines a pre-filter, deodorization filter and HEPA Filter to reduce 99.97% of particles, including pollen, odor and other common allergens. It also features a sensor that detects indoor air quality in real time and alerts you to how clean or dirty your air is with a bright LED display.

It’s on sale in white, beige and black ahead of October Prime Day — or opt for the advanced Wi-Fi-powered model that syncs up with a smartphone app for ultimate ease of use.

Your Prime Big Deal Days FAQs, answered

What is Prime Big Deal Days and when is it?

Prime Big Deal Days — fondly known as October Prime Day — is Amazon’s biggest fall sale, offering massive discounts before the holiday rush of Black Friday and Cyber Monday. October Prime Day runs from Tuesday, Oct. 6 to Wednesday, Oct. 7, 2026.

Prime Day vs. Prime Big Deal Days

Prime Day and Prime Big Deal Days are both Prime member-exclusive seasonal sales with massive discounts on rotating bestsellers. Unlike July’s Prime Day, Prime Big Deal Days runs every October as a precursor to the busy holiday season, allowing shoppers to start saving on gift shopping early.

Do you have to be an Amazon Prime member to shop?

October Prime Day is exclusively available to Prime members. However interested shoppers can grab a 30-day free trial to try Prime, and its many benefits with no strings attached, and gain access to exclusive deals and the convenience of fast, free shipping.

What are the best deals?

From reporting on Amazon sales for years, we can tell you for certain that Amazon’s October Prime Day is the ideal time to save on big-ticket tech, Amazon devices, gift-worthy clothing and beauty and skincare staples, household essentials and many more Amazon best-sellers.

Is it worth it?

Every Prime Day sale is a great chance to score deals on thousands of best-sellers, top tech and appliances and every day essentials, but Amazon’s October event also has great pre-holiday discounts on gifts. Our team diligently sorts through all the offers to find the very best items to grab on sale.

When is the next Prime Day?

Already wondering when Amazon’s next Prime Day is? We expect Prime Day to return in summer 2027, but anticipate just-as-good (if not better) deals coming this Black Friday and Cyber Monday. Follow Post Wanted’s around-the-clock coverage, and you’ll be the first to know about headline-worthy sales. Click here to find all of the best deals.

This article was written by Miska Salemann, New York Post Commerce Writer/Reporter. As a health-forward member of Gen Z, Miska seeks out experts to weigh in on the benefits, safety and designs of both trending and tried-and-true fitness equipment, workout clothing, dietary supplements and more. Taking matters into her own hands, Miska intrepidly tests wellness products, ranging from Bryan Johnson’s Blueprint Longevity Mix to the viral Oura Ring to Jennifer Aniston’s favorite workout platform – often with her adorable toddler by her side. Before joining The Post, Miska covered lifestyle and consumer topics for the U.S. Sun and The Cannon Beach Gazette.