An air purifier is a smart idea year round: It can protect against respiratory infections by trapping microscopic toxins that tend to pollute indoor air. In the wintertime, it's absolutely essential when we're stuck inside breathing in recycled air. There's no better place to score one than with Amazon's early Black Friday deals. Right now, you can get the Pure Enrichment PureZone 3-in-1 Air Purifier is on sale for $90, down from $130. This thing is a powerhouse, trapping over 99.97% of odors, smoke, dust and other allergens — and it looks chic on a tabletop or even on the floor.

Pure Enrichment

Pure Enrichment PureZone Air Purifier

$90$130Save $40

This air purifier uses a pre-filter, an activated carbon filter and a HEPA filter to trap over 99.97% of odors, smoke, dust and other allergens. Clip the on-page coupon for the full discount.

$90 at Amazon

It uses a three-stage filter to trap the nasty stuff — a pre-filter, an activated carbon filter and finally, a true HEPA filter. A built-in UV-C light provides an extra layer of sanitation. It’s energy-efficient, too, so your bill won’t suddenly skyrocket. Did we mention it over 12,000 five-star reviews on Amazon? That's pretty impressive, too.

“After this arrived, I did not open it for a while because we didn't get dogs yet," a happy shopper reported. "However, going into our bedroom, I noticed it smelled of dirty clothes. Yuck. So, I pulled this out of the box and set it up easily in seconds. Within 30 minutes it already smelled better."

The Pure Enrichment PureZone 3-in-1 Air Purifier is also a great find for those with allergies. “This air purifier really did its job in the past 5 months, that it purifies my office air and significantly alleviated my seasonal allergy," wrote another five-star fan. "The embedded UV lights also kills any mold that may exist in the space after continuous rains in the past few weeks."

Not surprisingly, the whisper-quiet gadget has plenty of fans among the snoring community. "Love the sleek appearance, easy operation and instructions," one shopper noted. "I can breathe much better too. Stopped my hubby from snoring at night and it's whisper quiet! I do love the fact that it blows air from the top and not the sides like most purifiers. This is a definite keeper. I love it!"

In short: This air-purifying gizmo is so popular, it practically has a fan club. "This is the answer to my allergies prayers," a shopper shared. "My dogs and cats like to hang out in my room with me and I’m mildly allergic to them. This thing has taken all the smell out of my room and I don’t wake up wheezing. I would recommend this product to anyone with asthma and allergies because it’s helped me tremendously."

Pure Enrichment

Pure Enrichment PureZone Air Purifier

$90$130Save $40

This air purifier uses a pre-filter, an activated carbon filter and a HEPA filter to trap over 99.97% of odors, smoke, dust and other allergens. Clip the on-page coupon for the full discount.

$90 at Amazon

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