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Customer Ratings & Reviews

Your price for this item is $349.99

Customer reviews

Rating 4.7 out of 5 stars with 756 reviews

Rating Filter

Rating by feature

  • Value

    Rating 4.6 out of 5 stars

  • Quality

    Rating 4.8 out of 5 stars

  • Ease of Use

    Rating 4.9 out of 5 stars

Pros mentioned filter

Cons mentioned filter

96%would recommend to a friend

Customers are saying

Customers are satisfied with the Air Purifier 4's ability to improve air quality and reduce odors, finding it quiet on lower settings and easy to use. Many appreciate its size and the auto mode, while some find the filter replacement cost to be high. Positive feedback also highlights the purifier's performance in allergy relief and its coverage area.

This summary was generated by AI based on customer reviews.

The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 5 Showing 81-100 of 756 reviews
  • Rated 5 out of 5 stars

    Shark 1000sqft

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    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I got this for $100 off its regular price so it’s was a good deal. Works great. Be ware of expensive filter that will need to be replaced.

    I would recommend this to a friend
  • Pros mentioned:
    Air purification, Allergy relief

    Rated 5 out of 5 stars

    Good filter recommend buying

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Good product. At first the sensor would always read 100% which made me feel like the filter wasn't working correctly. However, after cooking in the house I could see the sensor change. After a couple days using this filter I noticed that my nose was a lot less busier than normal. In the future it would be a good improvement to add a 2nd sensor for larger stuff like dust. I would like this filter to detect and auto run based on dust as well.

    I would recommend this to a friend
  • Pros mentioned:
    Overall performance
    Cons mentioned:
    Filter cost

    Rated 5 out of 5 stars

    Air Purifier

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    Posted . Owned for more than 2 years when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great, the only thing I feel is we are replacing the filter more often than it says we have to.

    I would recommend this to a friend
  • Cons mentioned:
    Filter cost

    Rated 5 out of 5 stars

    Shark- Air Purifer

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    Posted . Owned for 3 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This air purifier is a bit more complex than ones I got before, but the start-up instructions for this made it quick and simple. It's terrific that it has options for manual operation or auto-sensing so that the fans aren't on full rpm 100% of the time depending on air quality. It does manage to keep dust and pollen under control which help my allergies a lot! The replaceable filter does feel a bit much in price, but it's peace of mind. It's definitely better that I don't have to put up with frequent sneezing/stuffy nose from whatever is brought into the house during the summer. With winter around the corner, a.k.a. Dust and Cold Season, this will be better managed.

    I would recommend this to a friend
  • Pros mentioned:
    Noise level

    Rated 4 out of 5 stars

    Good option

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This has been a good air purifier so far. The size fits nicely against a wall and the unit runs fairly quiet. I do sometimes question the reading I'm getting on the screen however I think my humidifier may be confusing the sensors.

    I would recommend this to a friend
  • Pros mentioned:
    Allergy relief, Odor removal

    Rated 5 out of 5 stars

    Shark 4 Air Purifier

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    Posted . Owned for 6 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This Air Purifier is excellent for people with allergies. It eliminates bad orders or allergens that moght be in the air, makes it better for me to sleep at night.

    I would recommend this to a friend
  • Pros mentioned:
    Noise level, Odor removal

    Rated 5 out of 5 stars

    Awesome air purifier

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This air purifier is very quiet at low speeds and kicks in as soon as it senses odors. I keep it in my kitchen, and it keeps odors to a minimum while cooking and clears the smell quickly.

    I would recommend this to a friend
  • Pros mentioned:
    Noise level, Overall performance

    Rated 5 out of 5 stars

    Love this thing

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Shark has done it again. I couldn’t resist the $199 price. I should’ve gotten two. It’s pretty cool to set it to auto. Very quiet and you won’t even realize that it’s on. It does the job

    I would recommend this to a friend
  • Pros mentioned:
    Air purification, Noise level

    Rated 5 out of 5 stars

    Works great!

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The auto mode is nice! It's quiet on the lower speeds but you can hear it when it goes on high. We noticed a difference in the air quality

    I would recommend this to a friend
  • Pros mentioned:
    Air purification, Odor removal

    Rated 5 out of 5 stars

    Would recommend

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    Posted . Owned for 2 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Not only has the air quality improved, but also the odor. I leave it on all the time on auto and does a great job of handling a large space

    I would recommend this to a friend
  • Rated 5 out of 5 stars

    A nice looking air purifier!

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Looks to be a good air purifier with a lot of features, and adding convenience with a remote control. It also looks very nice that would add a great decoration to your room.

    I would recommend this to a friend
  • Pros mentioned:
    Air purification

    Rated 5 out of 5 stars

    User friendly

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Great product, easy to use, and lets me know the air quality of the area it is in.

    I would recommend this to a friend
  • Pros mentioned:
    Air purification

    Rated 5 out of 5 stars

    Cleans the Air

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    This unit is amazing! Works wonderfully and reduces the amount of dust and dander you’d otherwise be breathing. Love the air quality feature too. Nice and compact!

    I would recommend this to a friend
  • Pros mentioned:
    Noise level

    Rated 5 out of 5 stars

    Love it, simpily love it

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    Posted . Owned for 9 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    The wife loves the sound of a fan going at night in the bedroom, and this fits the bill. It amazing that if this is set to auto, and somebody starts cooking in the kitchen, this will detect the added air impuritites and start cleaning the air. When you change the filter, it's amazing what it collects.

    I would recommend this to a friend
  • Pros mentioned:
    Noise level, Overall performance

    Rated 5 out of 5 stars

    Perfect Air purifier

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    Posted . Owned for 10 months when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works perfect! At levels 1-3 pretty quiet, level 4 is a little on the loud side but only needed for bacon/other air quality emergencies so it works!

    I would recommend this to a friend
  • Pros mentioned:
    Noise level, Odor removal

    Rated 5 out of 5 stars

    Great filter system. Filters out smoke smell

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    Posted . Owned for 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Quiet and filters out smoke smell from upstairs! Tried a few filtering system and this one does what I need to get rid of the smoky smell from upstairs

    I would recommend this to a friend
  • Pros mentioned:
    Noise level, Overall performance

    Rated 4 out of 5 stars

    Air purifier

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Decided to buy this air purifier because we had started looking for one and found a good deal at Best Buy. Works great, not noisy unless turned on high which we haven’t needed yet. Easy to use and looks nice

    I would recommend this to a friend
  • Pros mentioned:
    Noise level, Overall performance

    Rated 5 out of 5 stars

    Great buy

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    Posted . Owned for 3 weeks when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Works great, extremely quiet in low setting. I use it in my bedroom to sleep at night. Thinking of purchasing another for my living room.

    I would recommend this to a friend
  • Pros mentioned:
    Odor removal, Overall performance

    Rated 5 out of 5 stars

    Great product

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    Posted . Owned for 1 month when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    Item works really well, keeps air clean and free of odors. This is the second of these I get.

    I would recommend this to a friend
  • Rated 4 out of 5 stars

    I have only had it 2 days but it works so far

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    Posted . Owned for less than 1 week when reviewed.
    This reviewer received promo considerations or sweepstakes entry for writing a review.

    I got this on sale. We put it in our bedroom first. Our bedroom is quite big. I was a little skeptical because it immediately said 94 or 95%. When we have dogs and cats and vape. But when I blew Vape smoke towards it it automatically went down. I do vacuum and clean a lot. But I feel is on going to give it a little more time before I am totally sold on it. If I had paid full price I'm not sure I would think it was worth it. I brought it downstairs today it again is reading good levels. Which I just find odd. The real test will be when my brother-in-law Cooks fish which is what I really wanted it for. I will update when he does that if it actually helps. If it does I plan on buying another one.

    I would recommend this to a friend
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