PlasmaPro® 400S-P Smart Air Purifier 

4.8 (233)
$483.99

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Product details

Web ID: 13031384
Purify 358 sq. ft. spaces 4.8x per hour and filter at least 99.97% of airborne particles down to 0.3 microns
  • Product Features

    • Large Coverage: Purify up to 1,755 sq ft with whisper-quiet noise levels as low as 22dB. 
    •  3-Stage Filtration: Captures at least 99.97% of airborne particles down to 0.3 microns, including dust, pollen, and smoke.
    • Smart Control: Control air purifier settings and receive real-time notifications about air quality, filter life, and more. 
    • Ideal Room Size: Perfect for large rooms like living rooms and open living spaces, the air purifier works up to 1,755 sq ft (1 ACH) and is very efficient for 363 sq ft (4.84 ACH).  
    • Reduce Odors: With more carbon and the ARC Formula, our filter removes smoke, fumes, VOCs, and household odors. Reduce Odors: With more carbon and the ARC Formula, our filter removes smoke, fumes, VOCs, and household odors
    • Room air cleaners certified through the AHAM Verified program have been tested by an independent laboratory to ensure the product will perform to the manufacturer's product claims for the suggested room size to reduce tobacco smoke, dust and pollen
    • Air Changes Per Hour (ACH): This number means how many times per hour your air purifier will filter the entire volume of air in a specific room. 
    • Plastic
    • Hand wash
    • Imported
    • Request warranty information
  • Shipping & Returns

    • This item may not be shipped to District of Columbia
    • Returns must be within 30 days of purchase in the original packaging and in salable condition.
    • California and Minnesota customers call 1-800-289-6229 for Free Shipping information.
    • For complete details, see our Shipping and Returns policies.
    • Please call customer service for returns.
  • Have questions?
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  • Ratings & Reviews

    Here's what customers think
    • This air purifier is highly effective at removing allergens, odors, and pollutants, resulting in significant improvements in air quality and relief from allergy symptoms.
    • It operates quietly, even at the highest fan speed, and features smart capabilities like air quality monitoring and automatic adjustments.
    • The compact, sleek design fits well in any room, and the unit is easy to set up and maintain with helpful filter life indicators.
    AI-generated summary from 233 customers reviews.

    4.8/5

    233 star ratings & reviews

    Write a Review
    88.4% of reviews have 5 stars
    206
    8.2% of reviews have 4 stars
    19
    1.7% of reviews have 3 stars
    4
    1.3% of reviews have 2 stars
    3
    0.4% of reviews have 1 star
    1

    86 customer images

    233 reviews
    Meyerm
    2 years ago
    from Arkansas
    Incentivized review

    Works Excellent!

    I have been using the Levoit PlasmaPro™ 400S Smart True HEPA Air Purifier for over a month. I have a 4 bedroom home and I have put the air purifier in the center of my home. I can tell a difference since I have started using it. I highly recommend this product.

    Recommends this product

    Customer review from etekcity.com

    Karmapenny
    2 years ago
    from Slatington
    Incentivized review

    PlasmaPro® HEPASmart™ 400S Smart True Air Purifier

    This is a great air filter for a bedroom. My son has some allergies to dust and pet dander. This really has improved the quality of air in his bedroom. It is very quiet and he doesn’t even notice that it’s on!

    Recommends this product

    Customer review from etekcity.com

    External reviewer
    2 years ago
    Incentivized review

    Great for allergies and asthmatics!

    My daughter suffers from allergies and asthma, and using this air purifier has been a game changer for us! I was skeptical at first, but soon noticed that it was really helping her, especially with some of the poor air quality we’ve had this summer. I can’t believe how much it actually improved our air quality. Set up was a piece of cake too. It makes a little bit of noise, but after an hour or so, I didn’t even notice it. If you, or anyone in your family suffer from allergies or asthma, this is definitively worth trying out. I was so surprised by how well this performs. It definitely did its job!

    Recommends this product

    Customer review from etekcity.com

    External reviewer
    3 years ago

    Mostly great

    Mostly great. It keeps disconnecting from my business internet. It also is not removing odors.

    Customer review from etekcity.com

    Vickielynn88
    3 years ago
    from Minnesota
    Incentivized review

    Strongly recommend for those with allergies!

    I have been looking at getting an air purifier for a while now, but I was very hesitant on which one to get. I bought a different brand smaller unit and I did not notice much of a difference. Once I got this one..... ABSOLUTELY made a huge difference! I love how it has a 360-degree air inlet with a top air outlet. The digital screen on the unit is very clear and easy to read as well. I can see the current air quality in my house on the digital screen as well as in the app when I am not at home. This has made a big difference for my son with asthma! The only down side is the cost of the replacement filters (very worth it though). Hopefully they will be in stock when it comes time to change it out.

    Recommends this product

    Customer review from etekcity.com

    Carol G
    3 years ago

    Excellent Air Purifier

    Easy set up and works great! We now have three set up in different rooms at our house. We also purchased two for my mother’s house.

    Customer review from etekcity.com

    nickerbocker
    3 years ago

    Terrible, foul smell after a short use

    The purifier continues to give off a foul, sour smell after a short time of use. I just purchased a new filter to try and resolve this issue at the end of May and by early July it was already beginning to smell this way again. Now in late July we can’t even use it anymore because it makes the room smell terrible. This seems to be a consistent problem that customers are having with Levoit’s products and they are not fixing the issues. Do not purchase this purifier. If you have already purchased the purifier don’t waste any more money on new filters and demand your money back.

    Customer review from etekcity.com

    Response from etekcity.com

    Customer Service3 years ago

    We appreciate you sharing your feedback. Let's see what we can do to help. Can you try running the unit without your filters to see if the smell persists? We would like to get a little more details to see how we can help. Please reach out to our customer service team directly. You can reach us at support@levoit.com or call us at (888) 726-8520. Our phones are open Monday thru Friday, 9:00 AM to 5:00 PM PST. We will be on the lookout for your message.

    Sam77
    3 years ago
    from Coconut Creek, FL
    Incentivized review

    Helps keep the air clean

    I never in the past really considered getting an air purifier but now that I have one I wish I would have purchased one sooner! I have a cat and it really helps with fur and keeping the litter box so that it doesn't smell in the house. I've also noticed that my allergies have gotten better. It also has an app for your phone so it really easy to set up and adjust the settings.

    Recommends this product

    Customer review from etekcity.com