9800 4-Stage True Hepa Air Purifier with WiFi and PlasmaWave, 500 Sq Ft,Black,Large

Powerful air purifier that is mostly silent. Our bedroom had a stale smell even though we dusted, changed the sheets, cleaned the carpet and sprayed. This unit did a good job of cleaning the air and removed the stuffiness. We are also using it in the living room to keep the air fresh. On levels 1 and 2, you cannot hear the fan at all. On level 3, it is very faint. On turbo mode, you can hear it but it is no louder than a regular fan. In less than a week, it has collected lots of dust and pet dander. The prescreen is easy to clean and it comes with 1 HEPA filter and several charcoal filters. It is a bit large and the instructions say to have it no closer than 12 inches from the wall, which puts in the walking path. I've used it closer to the wall and it seems to be working just fine.

First, I selected this based on Consumer Lab's ranking of it as runner-up to its #1 Large Space filter. The #1 selection was a ridiculous $600-$800 while this was nice $230 on sale (vs $399 normal). Heck, make this #1. Key features: (1) It has wifi-enabled companion app - but you can control it entirely from the air purifier itself which is good because frankly being able to avoid potentially cyber insecure IOT app for somethign that's largely unnecessary is great. (2) It automatically turns on plasma ionization when you turn it on, but you press the up & down (fan speed) buttons simultaneously for 3 seconds to turn it off. (3) If you run it on auto, when the lights are off (photo-sensitive not motion detection sensitive), it'll power down into ultra-low speed fan mode. Easy solution, turn off auto and leave it in low fan speed. Our dog farts like she's eaten deer poop. It's either get rid of the deer or the dog (joking), but we love our girl too much. Then there's the crawlspaces that were never encapsulated that give the house a musty smell while we're waiting to get them encapsulated this summer. And the skeptical husband. Enter this air purifier. It has approximately 5 air changes per hour for a 600-something SF space if I remember correctly. Within 30 minutes of turning it on, husbando and I noticeably detected fresher air throughout the house. Low and medium fan speeds aren't overly loud, and actually pleasantly low-key background noise. Even the high-speed is not particularly abrasive or overstimulating for you sensory-sensitive people. Plus it gives you 3 carbon filters from the start, each of which lasts 3 months if I remember correctly. So, all in all, super happy with this. Some reviews mentioned the LED light wasn't reliable - but someone who shall not be named (cough, the dog) audibly farted right in front of the purifier when she was sleeping (comically whoopee-cushion like which, if we couldn't breath immediately at least this time it was not because it was noxious but because we were laughing so hard) and the LED indicator IMMEDIATELY turned red. Ran for 5 minutes then the indicator went back to blue. Super great at dust removal, and our nostrils have been less congested between weekly house deep cleaning too.

This works wonderfully to filter out all kinds of odors like pet odor, fart smells, bleach, and cooking fumes. I have three large breed dogs in the house so it also sucks up quite a bit of fur in the air. That being said, cleaning the filter once a week in heavy traffic area helps it run better. I haven’t tried the WiFi connection just because I run it all the time. The color change seems pretty accurate to reflect bad air quality. One thing I notice is that it detects bad air quality from afar when I manually turn up the power setting but it won’t be able to detect it when it’s on auto mode. The weight is not too heavy. It’s worth the investment.

Purchased 6 months ago to help cut down on house dust and possible cat allergens though mostly because my better half has been wanting one for awhile and I finally broke down. Runs very quiet for the most part except rare occasions when auto fans goes in high mode which is pretty brief. Sensor works well to keep it quiet at night so no problem leaving it in bedroom. I think it is actually doing something because the filters need regular cleaning. It is pretty large but a handle on top makes it easy to lift and move around. The important thing is my wife believes it's helping with the dust. Easy to keep clean and replacement filters are reasonably priced. I plan to purchase another so I can leave one in bedroom and one downstairs.

Pros - This purifier "moves" air, and it does it quietly. Unlike other units I've tried the sensor in this unit actually works ! When it goes to red - "poor air", the fan speed turns up to high. It will turn yellow and the fan speed lowers, then when it senses clean air it switches to blue and the fan speed goes back to one. In the evening, as the room gets darker, the sensing light will go out. I guess they feel it will bother sleeping if used in a bedroom. At first I thought the unit was shutting off, but the fan was still running on low with the light out. It came alive and kicked up the fan speed when it detected poor air as it should. I like the multiple filters in the unit. We notice a big improvement in air quality including dust on furniture. The intake area on this unit is huge compared to other units. Cons - I downloaded the App to use Alexa. The App works on the phone to control the unit, but it will "not" work with Alexa. When asking Alexa to function the unit, it says purifier not responding. It seems to recognize the unit, but just won't control it. Customer service tried to guide me through a cure, but all efforts were fruitless. They couldn't even figure it out. We deleted and reinstalled the Apps a couple times. We don't really care if Alexa controls the unit, but if you are a Alexa die hard, good luck. Other than that, we have no other Cons ! We've been running it a couple weeks now and we are very happy with it. Will update review if anything develops. I gave it 4 stars because of the Alexa issue, but as far as cleaning the air performance, it's a definite "5".

Silent. Moves air when it needs to. Auto function great. Only issue is it goes into sleep mode when it is dark. Supposedly to keep it quite at nite but then it does not work so I have to keep a nite lite on. On normal Mode it is so quiet u do not need a sleep Mode. Have not been able to deactivate it. If some nows let me know.

El purificador cumple a cabalidad con la mision que tiene, no esperen mucho aire y menos que esto sea un producto que sirve de ventilador. Cuidado al instalar la app en un celular de Mexico, se debe poner como país estados unidos, si no lo haces no aparecera el modelo winix 9800, esperaba mas de la app es muy básica la informacion que provee.

Je l’adore silencieux, puissant , aucune odeur dans la maison . Je vous le recommande très bon achat et satisfaite service et livraison super! Merci 😄

WINIX 9800 is a reliable and efficient air purifier. It is easy to set up. It connected perfectly with 5G WIFI.

Works great