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
Original price was: $249.99.$149.98Current price is: $149.98.
Price: $249.99 - $149.98
(as of Dec 21, 2025 16:34:42 UTC – Details)
From the brand
At SIESEAN, our journey began with a simple mission: to create a healthier indoor environment for families everywhere. Inspired by the growing need for cleaner air, we combined innovative technology with a deep commitment to quality and sustainability. Our team of experts works tirelessly to design air purifiers that not only enhance air quality but also fit seamlessly into modern homes.
Product Dimensions : 10.04 x 9.64 x 18.9 inches; 11.25 Pounds
Item model number : AP-400
Date First Available : October 22, 2025
Manufacturer : Dongguan JHS Electrical Co.,Ltd
ASIN : B0FN2TGQR5
Best Sellers Rank: #37,644 in Home & Kitchen (See Top 100 in Home & Kitchen) #77 in HEPA Filter Air Purifiers
Customer Reviews: 5.0 5.0 out of 5 stars (96) 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 10 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
8 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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Original price was: $249.99.$149.98Current price is: $149.98.
joel ortiz –
Must buy item, absolutely amazing!!
I’ve been using the SIESEAN Air Purifier for a few weeks now, and it has exceeded my expectations. The dual-sided airflow really makes a difference in my living room and kitchen. It feels noticeably fresher within minutes. The air quality monitor is a nice touch, giving real-time feedback so I can actually see the improvement. Perfect for allergies and very easy to setup. The premium multi-effect filter handles dust, cooking odors, and pet smells impressively well, and the 30dB sleep mode is truly quiet. I can run it at night in the bedroom without any disturbance. Build quality feels solid, and the design blends in nicely with my home without being bulky or distracting. For the price, the performance and features make it a fantastic value. Overall, it’s powerful, quiet, and perfect for larger rooms. Highly recommended!
Mo Hossain –
Works well and surprisingly quiet
After running this for a couple weeks now,I like this purifier quite a bit. Air feels “fresher” after running it for some time, and it seems to handle dust and everyday odors fairly well.The noise level is impressively low, even on regular mode. Sleep mode is basically silent. Setup took minutes, controls are straightforward, and the display shows real-time changes which is nice to see.It’s bigger than some compact models but moves a lot of air efficiently in my living + dining open area.
María Fernanda –
Surprisingly Powerful for Its Size
’ve been using this air purifier in our bedroom for a few weeks, and I’m honestly impressed with how much of a difference it has made. Our room always felt a little stuffy in the mornings, and sometimes I would wake up with a scratchy throat. After running this purifier every night, the air feels fresher, lighter, and I wake up breathing much better.What I like the most is how quiet it is. On the lowest setting, I barely notice it, and the soft white noise actually helps me sleep. It also picks up dust quickly — I didn’t realize how much was in the room until I saw the filter after a few days!Another small thing I appreciate is the size. It doesn’t take up much space, so I keep it right next to the bed without it being in the way.If you want something simple, effective, and reliable for a bedroom, this purifier has been a great purchase for us. I didn’t expect to notice such a difference, but I really do.
Gianluca –
Big, quiet, and surprisingly solid
Once received this Siesean AP-400 air purifier, the first thing I noticed is how big it is. I added a photo of it next to my living room sofa so you can see the actual scale — it’s definitely a full-size purifier, not one of those tiny units that only cover a small corner of a room.It arrived well packed, and after letting it warm up to room temperature (it was very cold from being outside), I set it up. Build quality feels solid, the design is clean, and it runs very quietly on the lower settings. Even at higher speeds it’s not overwhelming.In the contrary, the airflow is massive and shows its capability. The air gets into 2 big EPA filters, one per side, then goes through the carbon filters and is blown out from the front.It has an elegant touchscreen display on the top that can be dimmed and turned off so at night it does not annoy. It shows the pm2.5 of the ambient air and it self regulates the airflow once the impurity level goes down.So far, for a big unit meant for larger spaces, it actually performs and looks better than I expected. I’ll update the review after a few weeks of use.
Suhana Jui –
Worth it
I bought this air purifier recently and it surprised me with how good it actually is. I have pets at home, and this thing really helped reduce the smell, the fur, and that dusty feeling in the room. It’s quiet, powerful, and you can feel the air getting fresher within a short time.If you have cats or dogs, this is honestly one of the best upgrades you can make for your home. It catches pet hair really well and helps with allergies too. Super easy to use, modern design, and doesn’t take up much space. Definitely worth it
Gita –
Well designed Air purifier
Bought the siesean air purifier a couple of weeks ago.First it checks the current ambient condition in the room.That’s the most important part of the air purifier.It has a timer with sleep function, automatic, perfect height, smooth air flow and good looking. It’s also very quiet and comes with a branded HEPA filter. I think it’seasy to clean with a simple vacuum cleaner. It has good advanced features and works perfectly for my large living room.After I ran it for an hour in my living area, my daughter came there and told me she feels fresh in breathing. Not sure whether it has any mobile app enabled or not or any built-in aromatherapy option. Price is really high, still it has a great number of features.
Navraj –
Quiet and powerful
This air purifier has been amazing for our home with a toddler and a pet. It cleans the air fast, cuts down on smells, dust and allergens. I love the quiet sleep mode and I can actually see it working. Perfect for large rooms and keeping our air feeling fresh and safe!
kevin –
Absolutely Worth It — Clean Air Made Noticeably Better!
I’m extremely impressed with the SIESEAN Air Purifier — it exceeded my expectations from the moment I turned it on. The dual-sided airflow is incredibly efficient, and I noticed a fresher, cleaner atmosphere in my living room within just a few hours. It easily handles large spaces, which makes it perfect for an open-concept home like mine.The air quality monitor is a great feature and updates in real time, so I can actually see the improvements as the purifier works. The premium multi-effect filter does a fantastic job removing dust, cooking odors, and even pet dander — the house just smells cleaner overall.I also love the 30dB quiet sleep mode. It’s practically silent, and I can leave it running overnight in the bedroom without any disturbance. The built-in timer and AHAM verification give me extra peace of mind that I’m using a reliable and certified product.