Shark - Air Purifier 4-Fan Series (HE400/HE401/HE402)
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Based on 1 year's data from Feb 24, 2026 How it works
Liked most:
6
0
"My husband and I went to bed with sore throats last night after running errands, no sore throats this morning."
"My college age son has allergies and always wakes up feeling crappy, he said he actually felt good this morning."
"They are definitely game changers and help with smell, but also dust."
2
0
"They’re very quiet I never hear them"
"It's nice and quiet."
9
1
"Work great and the one in the basement really keeps the kitty litter smell to 0."
"It’s been kicking on a lot lately because it detects bacteria and viruses in the air. 🦠"
"They are definitely game changers and help with smell, but also dust."
7
2
"Work great and the one in the basement really keeps the kitty litter smell to 0."
"They are definitely game changers and help with smell, but also dust."
"I have 2 dogs and there’s a noticeable improvement in pet smell."
3
3
"I’ve found the readings between them to be very consistent and accurate."
"I let the dogs out this morning and left the patio door open the air quality monitor dropped significantly and the air purifier kicked into high."
"7 of them have sensors built in, which change the color based on air quality."
Disliked most:
2
2
"I’ve been running a Shark air purifier for about 3 months with no noticeable reduction in dust"
"The light ring that indicates a change in air quality does change when I cook. I’m in an apartment. The unit is in my living room. But it takes a good 40 min to an hour to get back to 100 %. I would think that’s just the natural time of the air clearing. No help from the unit."
5
2
"Also I just put it in the bathroom w my bf while he poops. No change in the air reading or smell of the bathroom."
"It does NOT like sauerkraut, burnt eggs or fried tortillas 😆"
"The light ring that indicates a change in air quality does change when I cook. I’m in an apartment. The unit is in my living room. But it takes a good 40 min to an hour to get back to 100 %. I would think that’s just the natural time of the air clearing. No help from the unit."
0
3
"I tried it and returned it. I wanted to use its auto mode. But it doesn't seem to ever turn on by itself. Since that's the primary reason I wanted that model, it just didn't work out."
"Sensors read poor air quality all the time so the unit was running non stop."
"The light ring that indicates a change in air quality does change when I cook. I’m in an apartment. The unit is in my living room. But it takes a good 40 min to an hour to get back to 100 %. I would think that’s just the natural time of the air clearing. No help from the unit."
0
3
"Mine stopped working after 2 months."
"It advertises as lasting 5 years between changes, but I think that is inaccurate because each environment is different. I think mine will need yearly or bi-yearly changes."
"But no, it’s not actually never-change, you will eventually have to replace the hepa, I think they say 5 yrs but all depends on"
1
2
"It advertises as lasting 5 years between changes, but I think that is inaccurate because each environment is different. I think mine will need yearly or bi-yearly changes."
"But no, it’s not actually never-change, you will eventually have to replace the hepa, I think they say 5 yrs but all depends on"
weary_bee479 0.0We have a purifier on every level of the house, 3 in total. They are definitely game changers and help with smell, but also dust. We have two shark air purifiers with hepa filters, looks like it’s 120$ right now online. (So you can possibly get two depending how your house is set up) Those two are on our downstairs level one in the basement where the box is and one on the main level. They’re very quiet I never hear them, run them 24/7 with no issues. Our third is a dyson, honestly it was a gift i wouldn’t spend money on it 🤣 id stick with the sharks lol
I have a Dyson - it was a gift, and honestly I wouldn’t buy one myself 🤣 I honestly don’t even know if it does anything it’s on in our bedroom. We have two other purifiers one on each floor and they’re sharks, they were about 100$ each. Work great and the one in the basement really keeps the kitty litter smell to 0.
ALrredditt 0.0I bought one. Not so sure it works. The light ring that indicates a change in air quality does change when I cook. I’m in an apartment. The unit is in my living room. But it takes a good 40 min to an hour to get back to 100 %. I would think that’s just the natural time of the air clearing. No help from the unit. 🤷🏻♀️ Also I just put it in the bathroom w my bf while he poops. No change in the air reading or smell of the bathroom. After this test I am returning.
amphetaminesfailure 0.0I have two Shark ones too, I'm happy with them. One is also near my cat's litter box, mainly because I'm super paranoid about my house smelling for guests. I've visited too many homes over the years that look clean, but are definitely smelly. I know when you're the one living there, you don't even notice it. Just a recommendation as a fellow cat owner though, I switched to pine pellets a year and a half ago and there is almost NO smell from the litter box, it really absorbs the urine. Added bonus there's no dust like with clay ones (I don't trust the even the ones that claim they are "dust free". I use this brand: https://www.petco.com/shop/en/petcostore/product/feline-pine-cat-litter?srsltid=AfmBOorIHcL_YhTcQId9bj7qgmBmG-vFBd88---gl8sP_gKCQjoiPhx_ A 40 pound bag lasts me around 3.5 months with one cat.
B00k_Worm1979 0.0I have one and I love it! I have two sick people in my house with a cold. It’s been kicking on a lot lately because it detects bacteria and viruses in the air. 🦠
I just bought a Shark air purifier and it’s near the kitchen. No more food smells lingering in the kitchen. It does NOT like sauerkraut, burnt eggs or fried tortillas 😆
Bad-Luck1313 0.0Clears the air way faster and better than my Dyson. It’s a workhorse.
Calm_Breadfruit_4834 0.0I’ve got a shark one and I’m still not converted if they work .
Celticlady47 0.0I've had 2 Levoit air purifiers and recently bought the new Shark Ninja one that doesn't require filters. They are all awesome at helping me breathe and keeps the dust and cat hair under control.
cHefMyco 0.0Shark air purifiers work pretty well
Competitive_Bat4000 0.0there are 2 filter, it has pre-filters on the outside that can be washed and inside is a typical air filter cartridge. The idea is the outer pre-filters catch most the debris and can be washed off, saving the inner hepa. But no, it’s not actually never-change, you will eventually have to replace the hepa, I think they say 5 yrs but all depends on
daskalakis726 0.0We have 2 dogs (standard poodles so we don't have dog hair issue) and we just got the Shark Air purifier thing for Christmas. I feel like it was pointless. Our air quality is always 99-100% (which is good, yay) but I feel like it's lying LOL. The ONLY time it says our air quality is bad, is when we are cooking. It'll go down to the 40s sometimes!
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