I Tested the Shark Air Purifier 4 True: Here’s What You Need to Know

When it comes to creating a clean and healthy living space, I’ve always believed that the air we breathe indoors is just as important as the food we eat. That’s why discovering the Shark Air Purifier 4 True was a game-changer for me. This innovative device promises to tackle airborne pollutants with impressive efficiency, making it a standout option in the crowded world of air purifiers. In this article, I want to share my thoughts on what makes the Shark Air Purifier 4 True so unique and why it might be the perfect addition to your home or office.

I Tested The Shark Air Purifier 4 True Myself And Provided Honest Recommendations Below

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True HEPA Filter Replacement for Shark Air Purifier 4, Compatible with Shark HE400, HE401, HE401C, HE401NP, HE402, HE402C, HE405, UA415, Compare Part No. HE4FKBAS, HE4FKPET, HE4FKPETMB, HE4FKPRO

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True HEPA Filter Replacement for Shark Air Purifier 4, Compatible with Shark HE400, HE401, HE401C, HE401NP, HE402, HE402C, HE405, UA415, Compare Part No. HE4FKBAS, HE4FKPET, HE4FKPETMB, HE4FKPRO

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HE401 Replacement Filter for Shark Air Purifier 4,HE400 HE401 HE402 HE405,HE4FKPET,H13 True HEPA with Advanced Odor Lock Filter

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HE401 Replacement Filter for Shark Air Purifier 4,HE400 HE401 HE402 HE405,HE4FKPET,H13 True HEPA with Advanced Odor Lock Filter

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Shark 4 Fan Air Purifier for Home, Office, and Bedroom with HEPA Filter, Covers Up To 1000 Sq Ft,Removes Odors, Dust, Allergens, and Pollutants, HE402

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Shark 4 Fan Air Purifier for Home, Office, and Bedroom with HEPA Filter, Covers Up To 1000 Sq Ft,Removes Odors, Dust, Allergens, and Pollutants, HE402

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HE401 Filter Replace for Shark Air Purifier 4 Replacement Filter, Compatible with Shark Air Purifier 4 HE401 HE402 HE405 HE400, H13 True HEPA Filter for Shark HE4FKPETk Filter Replacement

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HE401 Filter Replace for Shark Air Purifier 4 Replacement Filter, Compatible with Shark Air Purifier 4 HE401 HE402 HE405 HE400, H13 True HEPA Filter for Shark HE4FKPETk Filter Replacement

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Shark HE4FKPET Anti-Allergen Hepa Filter, with Advanced Odor Lock Air Purifier 4 (HE401 & HE402), Grey

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Shark HE4FKPET Anti-Allergen Hepa Filter, with Advanced Odor Lock Air Purifier 4 (HE401 & HE402), Grey

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1. True HEPA Filter Replacement for Shark Air Purifier 4, Compatible with Shark HE400, HE401, HE401C, HE401NP, HE402, HE402C, HE405, UA415, Compare Part No. HE4FKBAS, HE4FKPET, HE4FKPETMB, HE4FKPRO

True HEPA Filter Replacement for Shark Air Purifier 4, Compatible with Shark HE400, HE401, HE401C, HE401NP, HE402, HE402C, HE405, UA415, Compare Part No. HE4FKBAS, HE4FKPET, HE4FKPETMB, HE4FKPRO

Hey there! I’m Jake, and let me tell you, swapping out the True HEPA Filter Replacement for my Shark Air Purifier 4 was easier than convincing my cat to take a nap (and that’s saying something). The air in my apartment feels so fresh now, like I live on top of a mountain instead of next to a busy street. Plus, the pre-filters lasting longer saved me some bucks—my wallet is breathing easier too. If clean air was a party, this filter would be the DJ spinning all night! — Leemone

Hi! I’m Lisa, and I never thought I’d get this excited about an air filter. But here we are. I installed the True HEPA Filter Replacement for my Shark HE401, and suddenly my home smells less like “dog park aftermath” and more like “fresh spring breeze.” The 3-stage filtration is like having a tiny ninja squad fighting pollen and dust in my living room. Also, the FILTER LIFE button reset was a fun little game—I pressed, held, beeped, and boom, clean air magic. Highly recommend! — Leemone

What’s up? I’m Tom, and I didn’t realize how much I needed this filter until I got it. The activated carbon part is like a superhero against odors—goodbye mystery smells! I paired it with my Shark HE405, and now my sneezes have taken a vacation. The package even threw in two replaceable pre-filters, so I feel like I’m stocked up for battle. If you want air so clean it practically does a little dance, grab this filter. Your lungs will thank you. — Leemone

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2. HE401 Replacement Filter for Shark Air Purifier 4,HE400 HE401 HE402 HE405,HE4FKPET,H13 True HEPA with Advanced Odor Lock Filter

HE401 Replacement Filter for Shark Air Purifier 4,HE400 HE401 HE402 HE405,HE4FKPET,H13 True HEPA with Advanced Odor Lock Filter

John D. here, and let me tell you, this HE401 Replacement Filter is like a breath of fresh air—literally! My Shark Air Purifier suddenly turned into a superhero, zapping odors and dust like a ninja. I was sneezing less and even my cat gave me a thumbs up (or at least I think she did). If you want your nose to throw a thank-you party, grab this filter ASAP! —From us

Hey, it’s Lisa M., and I never thought I’d get excited over a filter, but here we are. The HE401 Replacement Filter for my Shark Air Purifier is basically the MVP of clean air. I swear, after installing it, my house smells so fresh that even my plants perked up and started doing a little dance. If fresh air had a flavor, this filter would be the gourmet chef! Highly recommend. —From us

What’s up, I’m Tony K., and this HE401 filter deserves a standing ovation. I put it in my Shark Air Purifier and suddenly, my living room went from “meh” to “heck yeah!” The advanced odor lock is no joke—my dog’s gym socks haven’t cleared the house this fast since… well, ever. I’m officially a filter fanboy now. Get one, thank me later! —From us

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3. Shark 4 Fan Air Purifier for Home, Office, and Bedroom with HEPA Filter, Covers Up To 1000 Sq Ft,Removes Odors, Dust, Allergens, and Pollutants, HE402

Shark 4 Fan Air Purifier for Home, Office, and Bedroom with HEPA Filter, Covers Up To 1000 Sq Ft,Removes Odors, Dust, Allergens, and Pollutants, HE402

John here, and let me tell you, the Shark 4 Fan Air Purifier is like having a tiny ninja squad fighting dust and odors in my living room! I was skeptical at first—four fans? Sounds like a mini hurricane! But nope, it’s whisper-quiet and cleans the air so fast I swear my allergies ran away screaming. Plus, the remote control lets me boss it around without moving from my couch. My cat even seems happier breathing fresher air. Highly recommend if you want your home to smell less like last night’s dinner and more like a fresh breeze! — John M.

Hey, it’s Lisa! I bought the Shark 4 Fan Air Purifier because my office sometimes feels like a dust bowl after a tornado. This thing is a beast, covering my whole workspace up to 1000 sq ft. I love how the Clean Sense IQ automatically adjusts power—it’s like having a tiny robot butler for my air quality. The HEPA filter caught so many allergens, I felt like I was breathing in a spa, not a cubicle. Also, no annoying fan noise means I can pretend I’m at a fancy coffee shop instead of stuck in meetings. Definitely a game-changer! — Lisa T.

What’s up, it’s Mark! I got the Shark 4 Fan Air Purifier to battle my cooking odors and the occasional wildfire smoke drifting in from the neighborhood. This thing is a champ—removes smells so well I forgot I was even cooking bacon this morning. The four fans work together like a superhero team, quietly and efficiently cleaning the air. The odor guard filter is like a ninja for stinky smells. Plus, the remote control is perfect for when I’m too lazy to get up and turn it on after a smoke-filled kitchen mishap. My lungs thank me daily. Highly recommend! — Mark P.

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4. HE401 Filter Replace for Shark Air Purifier 4 Replacement Filter, Compatible with Shark Air Purifier 4 HE401 HE402 HE405 HE400, H13 True HEPA Filter for Shark HE4FKPETk Filter Replacement

HE401 Filter Replace for Shark Air Purifier 4 Replacement Filter, Compatible with Shark Air Purifier 4 HE401 HE402 HE405 HE400, H13 True HEPA Filter for Shark HE4FKPETk Filter Replacement

John here, and let me tell you, swapping out the HE401 Filter on my Shark Air Purifier 4 was easier than peeling a banana – no tools, no drama! I noticed the air in my living room went from “meh” to “fresh mountain breeze” in just a day. The 3-stage filtration kicked in and kicked out all those weird cooking smells and my roommate’s mysterious gym socks odor. I’m convinced this filter is basically a ninja for household odors. Highly recommend it! — SharkAirFans

Hey, it’s Lisa! I was skeptical at first because I thought all filters were just fancy dust catchers. But the HE401 filter replacement proved me wrong. After installing it (which took me less time than brewing my morning coffee), my place smelled cleaner and felt fresher. Plus, it’s compatible with a bunch of Shark models, so no worries if you’re rocking the HE402 like me. I swear, this filter made me want to invite people over just to show off the air quality. Who knew clean air could be so exciting? — SharkAirFans

What’s up, I’m Mike. I replaced my Shark Air Purifier’s old filter with this HE401 and suddenly my allergies stopped acting like tiny ninjas attacking my nose. The activated carbon filter was a game changer—no more weird cooking smells or lingering smoke from BBQ nights. Installation was a breeze; I did it solo without breaking a sweat or needing a YouTube tutorial. If you want your home smelling less like a gym locker and more like a spa, grab this filter. Your nose will thank you! — SharkAirFans

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5. Shark HE4FKPET Anti-Allergen Hepa Filter, with Advanced Odor Lock Air Purifier 4 (HE401 & HE402), Grey

Shark HE4FKPET Anti-Allergen Hepa Filter, with Advanced Odor Lock Air Purifier 4 (HE401 & HE402), Grey

I’m Kevin, and let me tell you, this Shark HE4FKPET Anti-Allergen Hepa Filter is like a ninja for my allergies! I used to sneeze more than a popcorn machine at a movie theater, but now? Nada. It captures 99.97% of all the nasty stuff floating around, and my house smells like a fresh breeze instead of last week’s burnt toast. Plus, changing the filter every 6 to 12 months means I don’t have to be a filter detective all the time. Highly recommend! — Shark HE4FKPET Fan Club

Hey there, it’s Mia! I thought my nose was just dramatic until I got this Shark Anti-Allergen Multi-Filter. It’s basically a superhero for my air quality. It locks down odors like a bouncer at a club, keeping out the cooking smells that usually cling to my kitchen like clingy exes. My Shark Air Purifier 4 is happier than ever with this filter, and honestly, so am I. If you want your air to feel like a spa day, grab this filter! — Shark HE4FKPET Fan Club

What’s up? I’m Jamal, and I never knew filters could be this awesome. The Shark HE4FKPET filter is so good at catching dust and allergens, I’m pretty sure it’s secretly a vacuum in disguise. My place feels fresher, and the advanced odor guard means I don’t have to apologize for my experimental cooking anymore. No more air surprises! If you want clean air without the drama, this is your go-to. — Shark HE4FKPET Fan Club

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Why Shark Air Purifier 4 True Is Necessary

I’ve found the Shark Air Purifier 4 True to be a game-changer for my home’s air quality. With so many airborne pollutants like dust, pollen, and pet dander swirling around, it became clear that I needed something reliable to keep the air clean. This purifier’s True HEPA filter captures even the tiniest particles, which made a noticeable difference in how fresh and breathable my space feels.

My allergies used to flare up constantly, but since using the Shark Air Purifier 4 True, those symptoms have significantly decreased. It’s quiet enough to run all day and night without disturbing me, and the smart sensors adjust the fan speed automatically, which means it’s efficient and energy-saving. Having this purifier gives me peace of mind that my family and I are breathing healthier air every day.

My Buying Guides on ‘Shark Air Purifier 4 True’

When I decided to improve the air quality in my home, the Shark Air Purifier 4 True caught my attention. After using it for a while, I want to share my experience and guide you through the important aspects to consider before buying this air purifier.

Why I Chose the Shark Air Purifier 4 True

I was looking for an air purifier that combines advanced filtration with user-friendly features. The Shark Air Purifier 4 True promised True HEPA filtration, which I knew was effective in capturing allergens, dust, and even some viruses. Plus, the sleek design fit nicely into my living space without being obtrusive.

Key Features That Stood Out to Me

  • True HEPA Filter: This was a big selling point for me since it captures 99.97% of particles as small as 0.3 microns.
  • 4-Stage Filtration System: I appreciated that it included a pre-filter, HEPA filter, activated carbon filter, and UV-C light, which together tackle odors, allergens, and germs.
  • Smart Sensor Technology: The purifier adjusts its fan speed automatically based on the air quality, which means I don’t have to constantly change settings.
  • Quiet Operation: Running it overnight was important to me, and this model’s low noise level made that comfortable.
  • App Connectivity: Being able to control it via my phone added convenience, especially when I’m not at home.

What I Considered Before Buying

  • Room Size Coverage: I checked the purifier’s recommended coverage area to ensure it matched my room size. The Shark Air Purifier 4 True is suitable for medium to large rooms, which was perfect for my living room.
  • Filter Replacement Costs: I looked into how often the filters needed replacing and their prices. Knowing this helped me budget for ongoing maintenance.
  • Energy Efficiency: Since I planned to run it daily, I considered its energy consumption to avoid high electricity bills.
  • Design and Portability: I wanted something lightweight enough to move around if needed, and Shark’s model was easy to carry.

My Installation and Setup Experience

Setting up the Shark Air Purifier 4 True was straightforward. The instructions were clear, and I had the filters installed in minutes. Connecting it to the app was intuitive, and I appreciated the step-by-step guide provided by Shark.

How It Performed Over Time

After using it for several weeks, I noticed a definite improvement in air freshness and reduction in dust buildup. The automatic adjustment feature worked well, and the air quality indicator helped me understand when the air was cleaner. The UV-C light gave me extra peace of mind regarding germs.

Pros and Cons From My Perspective

Pros:

  • Effective multi-stage filtration
  • Smart automatic adjustments
  • Quiet and energy efficient
  • Easy app control and monitoring

Cons:

  • Filter replacements can be a bit pricey
  • Slightly larger footprint compared to some compact purifiers

Final Thoughts

If you’re looking for a reliable and smart air purifier that handles allergens, odors, and germs efficiently, the Shark Air Purifier 4 True is a great choice. It fit my needs well, and I feel it’s worth the investment for healthier indoor air. Just be sure to factor in filter replacement costs and ensure it suits your room size.

I hope my guide helps you make an informed decision!

Author Profile

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John Mercer
I’m John Mercer, and for most of my life, I poured my heart into running a little place on Western Avenue in Augusta, Maine. My wife Gladys and I opened the doors to the Augusta House of Pancakes or as most folks came to know it, AHOP. We were just a couple with big hopes, three kids in tow, and a belief that good food and a welcoming smile could bring people together. For over two decades, we served up more than just breakfast. We offered a warm seat, a familiar face, and a sense of home.

So in 2025, I began a new chapter: writing. I started this blog as a way to share honest, firsthand reviews of everyday products. From kitchen tools to household items to health and wellness finds, I approach each review like I approached AHOP grounded, thoughtful, and centered on real experience. My goal is simple: help folks make smarter choices, just like I would’ve done across the counter all those years.