The Levoit Core 400S-P Smart Air Purifier, is the efficienct air
purifier to clean a whole room properly. AirSight Plus technology
scans the surrounding air for airborne particles as small as
0.3um, this air purifier focuses on real-time home conditions -
this is more than just having an air purifier. Levoit engineers
designed the air purifier's internal structure to provide
powerful air purification while maintaining noise levels as low
as 24dB. Features:Intelligently purifies the air in a 1733 sq ft
room per hourAn Efficient Middle Filter helps create a cleaner,
healthier home - Our air purifiers are scientifically proven to
capture particles as small as 0.3 microns including pollen, dust
and more. 360° filtration system uses activated carbon to remove
gases and odors and a Efficient Middle Filter to capture 99.97%
pollutants as small as 0.3 microns. Automatically senses and
reacts to changes in air quality - then reports pollution in real
time on LCD screen and on your free VeSync Link app. In the sleep
mode, the air purifier monitors and purifies using the quiet
settings, with a dimmed display and can be totally turned off.
Program your machine to turn off after pre-set intervals between
1 -12 hours. Safe and easy to clean with low maintenance,
easy-to-replace filters. With built-in notifications when they
require replacing. Using compatible voice control services,
control your air purifier with simple, spoken instructions. Works
with Alexa and Googlevoice Assistant. Choose from a variety of
replacement filters to best meet your needs. The Toxin Absorber
Filter specializes in smog, toxins, and VOCs, while the Smoke
Remover filter addresses smoke from wildfires, smoke, and other
particulates. The Pet Allergy Filter captures fur and absorbs
unpleasant odors. Warning – unauthorized replacement filters are
not tested. Only authentic Levoit filters are recommended to
ensure a sealed system and proper functioning of the machine. The
official Levoit Core 400S replacement filter can be found by
searching "B08SQQK6K7" in the search bar.
Review: Highly recommend this product - After 30 days of solid
use is working well. Husband reporting much less allegens and
improved sleep. Has reduced dust in the house by 90% -seriously,
we leave doors open as much as possible in house and were dusting
once a week -now do not have the dust buildup at all. Easy out of
the box setup. Not noisy and does reduce cooking odors as well as
its primary filtration job -so a nice benefit
Review: The "Gold Standard" for Open-Concept Living - The Core
400S-P is the "heavy hitter" of the Core series. If you have an
open-concept home, shedding pets, or live in an area prone to
seasonal smoke, this unit isn't just an accessory—it’s a
pulmonary insurance policy. Here is the professional breakdown.
The Engineering: AirSight Plus & VortexAir Tech What sets the
400S-P apart from its smaller siblings is the sheer volume of air
it moves. VortexAir 3.0: This unit utilizes a 360° intake that
can refresh the air in a 1,733 ft² space in just one hour. For a
standard 400 ft² living room, you’re looking at a complete air
exchange every 12 minutes. AirSight Plus Laser Sensor: Most
budget purifiers use a basic infrared sensor that can’t tell the
difference between dust and steam. The 400S-P uses a
high-precision laser that scans for PM2.5 (microscopic particles)
and adjusts the fan speed in Auto Mode with incredible accuracy.
Smart Integration: The VeSync Ecosystem In my 10 years of
testing, Levoit’s VeSync App remains the most stable in the
industry. Real-Time Data: You can see your indoor air quality
(AQI) on your phone in real-time. Voice Control: Full integration
with Alexa and Google Assistant allows you to say, "Set Air
Purifier to Turbo" when you burn toast in the kitchen, and it
responds instantly. PROS True H13 HEPA Filtration: The 3-stage
system captures 99.97% of airborne particles down to 0.3 microns,
including pollen, pet dander, and smoke. Genuinely Quiet Sleep
Mode: At 24dB, it is whisper-quiet. The display lights can be
turned off entirely, making it perfect for light sleepers. AHAM
Verified: This isn't just "marketing talk." It has been
independently tested for Clean Air Delivery Rate (CADR), ensuring
it performs exactly as advertised. No Ozone: Unlike some
competitors that use "ionizers," this is 100% ozone-free and safe
for people with asthma or respiratory sensitivities. Auto-Mode
Efficiency: The "set and forget" logic is flawless. It stays on
low until it detects a spike (like cooking or dusting), ramps up
to clear the air, and then drops back down to save energy. CONS
Filter Cost: Genuine Levoit replacement filters are a bit of an
investment, though the app tracks the exact life percentage so
you don't waste money by changing them too early. Unit Size: It
is a substantial "pedestal" size. You’ll need a dedicated corner
for it; it’s not meant for a tabletop. Initial WiFi Setup:
Occasionally, the 2.4GHz WiFi pairing can be picky—ensure your
phone is close to the unit during the first sync. Overall Input
The LEVOIT Core 400S-P is a masterclass in domestic air
filtration. It bridges the gap between consumer electronics and
professional air management. It’s rugged, intelligent, and
exceptionally effective at removing the "unseen" triggers that
cause allergies and fatigue. Reviewer Pro-Tip: To maximize the
life of your expensive HEPA filter, vacuum the outer pre-filter
(the visible gray layer) every 2 weeks. This removes the large
hair and dust bunnies that choke the machine, allowing the
internal HEPA layer to focus on the microscopic particles it was
built for! Who is this for? Pet owners, residents of high-pollen
or wildfire-prone areas, and anyone with a large, open-concept
floor plan who wants to breathe "mountain-fresh" air indoors.
