Air Purifiers for Home Large Rooms up to 3500 Ft², H13 True HEPA 0.1 Micron 99.97% Filtration with Carbon Filter, 235 CFM CADR, Removes Allergens, Pet Odor, Smoke, VOCs, 30dB Sleep Mode, PM2.5 Display
$149.99
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Product description
1 Air Problems We Solve
2 Smoke & Odors
3 Allergy
4 VOCS
5 Wildfire Smoke
1 3-in-1 Filter
2 Air Quality Display
3 Filter Reminder
4 Why Choose Siesean
5 What Customers Are Saying
1 Air Purifiers for Pets
2 Easy Clean Filter
3 Replacement Filters
1 Ultra- Quiet Air Purifier
2 Smart Control
3 Child Lock
1 Whole-Home Purification
2 Kitchen
3 Living Room
4 Office
5 Basement
Product Dimensions : 10.04 x 10.04 x 18.9 inches; 11.25 Pounds
Item model number : AP400
Date First Available : October 22, 2025
Manufacturer : Dongguan JHS Electrical Co.,Ltd
ASIN : B0FN2TGQR5
Best Sellers Rank: #19,935 in Home & Kitchen (See Top 100 in Home & Kitchen) #58 in HEPA Filter Air Purifiers
Customer Reviews: 4.8 4.8 out of 5 stars (90) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
H13 True HEPA + Carbon Filter – Removes Allergens, Odors & Smoke: Equipped with H13 True HEPA (0.1μm, 99.97%) and an activated carbon filter, this purifier removes dust, pollen, pet dander, pet hair, cigarette smoke, wildfire smoke, VOCs, odors, and everyday particulates—ideal for allergy sufferers, pet owners, and households with smokers
235 CFM CADR + Dual-Sided Airflow – Fast Purification for Large Rooms: The powerful 235 CFM CADR and dual-inlet airflow design deliver 2× faster circulation, cleaning 500 sq.ft in 15 minutes and covering up to 3500 ft². Perfect for large living rooms, open-concept homes, basements, pet activity areas, and offices
Quiet 30dB Sleep Mode – Ideal for Bedrooms & Light Sleepers: Sleep Mode lowers noise to just 30dB, and the dimmer function lets you adjust the panel brightness for comfortable nighttime use. It delivers cleaner air while you rest—perfect for children’s rooms, allergy relief during sleep, and pet owners who need overnight odor control
Smart PM2.5 Air Quality Display + Auto Mode – Real-Time Protection: The built-in Air Quality Monitor and PM2.5 digital display provide instant feedback. Auto Mode adjusts fan speed based on air quality—ideal for homes with pets, cooking odors, smokers, or daily allergens
Family-Safe Design – Floor Standing with Timer, Child Lock & Dimmer: Built for daily home use with Child Lock, Timer, and control panel dimmer—safe for kids, pets, and shared living spaces. The floor-standing design fits naturally in homes, living rooms, bedrooms, offices, and new home setups
Independently Tested & Certified → Peace of Mind in Every Use: Independently tested and certified by CARB, DOE, EPA, and UL, this air purifier meets strict standards for clean-air performance, energy efficiency, and electrical safety, with high CADR to reliably filter allergens, pet dander, smoke, VOCs, and odors. Quiet and dependable for daily use in bedrooms, living rooms, pet areas, and large rooms, it offers added peace of mind for homeowners
3 reviews for Air Purifiers for Home Large Rooms up to 3500 Ft², H13 True HEPA 0.1 Micron 99.97% Filtration with Carbon Filter, 235 CFM CADR, Removes Allergens, Pet Odor, Smoke, VOCs, 30dB Sleep Mode, PM2.5 Display
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$149.99
Galactic Voyager –
Powerful, Efficient and Quiet Air Purifier – Good Option for Large Rooms.
I got this air purifier for our living room in our large open-concept home, and it has met my expectations in every way. With coverage of up to 3500 sq ft, it easily handles our living room, kitchen, and adjoining office space, keeping the air fresh and clean throughout the day. The True HEPA filter is very powerful, removing dust, pollen, pet dander, and smoke. Combined with the activated carbon filter, it also removes odors and everyday household smells, which is especially helpful with pets and cooking, leaving the air fresh and easy to breathe.From the moment I turned it on, it clearly showed us the current air quality with the light indicators, and shortly after, we noticed a significant improvement in the air. The dual-sided airflow ensures that air circulates quickly, so even in our large 3000+ sq ft space, the air feels cleaner within minutes. It’s great for anyone with allergies or respiratory sensitivities. The unit handles pet hair and dander very well, making it ideal for pet owners like me.One of my favorite features is the quiet Sleep Mode. At just 30dB, it’s barely audible, allowing for undisturbed sleep even in the same room. The dimmable control panel is another thoughtful touch, preventing bright lights from disturbing children or light sleepers at night. I’ve left it running overnight, and it’s reassuring to know the air is continuously filtered while we sleep.The PM2.5 display and Auto Mode are very useful for keeping track of air quality in real time. The digital display lets me see when particles or allergens are present, and the Auto Mode adjusts the fan speed automatically based on air quality readings. During cooking or when the cats are particularly active, it ramps up and then quiets down once the air is clean. This intelligent operation is perfect for households that want efficient air cleaning without constantly monitoring the unit.Setup was easy and straightforward, and the floor-standing design fits naturally in our living room without taking up much space. The child lock gives extra peace of mind, and the timer function is convenient for scheduled use during the day or night. I also appreciate that this purifier is independently tested and certified to meet strict safety and performance standards, which is very reassuring, especially in a home with children or pets.Overall, this air purifier is a reliable and efficient option for anyone looking to improve indoor air quality in large spaces. It’s quiet, easy to use, and effective at removing allergens, smoke, pet odors, and other particulates. Since adding it to our home, I’ve noticed fewer allergy symptoms, less dust buildup, and a more comfortable living environment. This air purifier delivers powerful performance while remaining unobtrusive, making it an excellent choice for families, pet owners, and anyone concerned about indoor air quality,
Kimchi Noodle –
Impressive airflow and whisper-quiet operation for large spaces
Upon setting this purifier up, the first thing I noticed was the build quality; it feels solid rather than like a cheap plastic box, yet it fits naturally into the room without taking up much space. The setup was straightforward, though you must remember to unwrap the filters inside before plugging it in. I really appreciate the dual-intake design which pulls air from both sides using four distinct filters. This feature seems to circulate air much more efficiently than standard units, and it has had no trouble managing the air quality in my large, open-concept living area. Since I started running it, the air feels noticeably fresher and lighter, and I have observed a decrease in the amount of dust accumulating on my furniture.The intelligent Auto Mode is the standout feature for me. The unit continuously monitors the air, displaying a real-time PM2.5 reading and a color-coded light to indicate air quality. It is highly reactive; if I am cooking or if the pets are kicking up dander, the fan speed automatically adjusts to scrub the air and then quiets down once the levels drop. Speaking of noise, this is one of the quietest purifiers I have used. In Sleep Mode, the lights turn off and the fan becomes a soft, barely audible whisper that does not disrupt sleep. Between the effective odor elimination and the smart monitoring, this unit offers excellent value for anyone needing serious filtration for a larger home.
Matthew –
Quiet, Effective Air Purifier for Large Rooms and Pet Owners
As a homeowner in Florida, air quality is a big deal for me — between humidity, pollen, dust, and pet dander, it never really lets up. I’ve been running this SIESEAN air purifier in our main living area for a few weeks now, and I’m honestly impressed.First off, it looks clean and modern. It doesn’t stick out like a big appliance, and it’s quiet enough that I forget it’s running — especially on sleep mode. The 30dB setting is perfect at night. No rattling or annoying hum.Performance-wise, it’s made a noticeable difference. We have a dog, and the pet odor is way more controlled. I also wake up less congested, which is saying something during Florida allergy season. The PM2.5 display is a nice touch — it’s reassuring to actually see the air quality improve after cooking or when doors are open.The airflow is strong without being overwhelming, and for a unit rated up to large rooms, it seems to circulate air efficiently in our open-concept space. It also feels solid and well-built, not cheap or flimsy.If you live in a humid, allergy-heavy state like Florida and want something that handles pollen, smoke, and pet smells without sounding like a jet engine, this is a great buy. I’d definitely purchase again.