Customer Ratings & Reviews

Just bought last week. I am back to back with the freeway, and that was the reason of the air purifier purchase. Once I plugged in the air purifier for the first time, it displayed 60%. After 30 minutes the purifier displayed 100% When cooking, the air quality drops to 45%. Once I turn off the stove burners, the air quality starts making it’s way to 100%, and the food odor start to go away. It takes 30 to 60 minutes to reach 100%, and of course it depends on your room size (sq.ft) I would recommend this: Shark - Air Purifier 4 with Anti-Allergen Multi-Filter to anyone with the same problem I have, or for any other purpose this purifier was made for.

Shark Air Purifier 4 is a standing floor-based purifier that distributes air through 4 fans and uses clean sense IQ technology to track quality of air. It uses a HEPA filter that captures dust, dander, allergens and micro particles of 0.3 microns or larger. Air quality is usually measured by particulate matter (PM) in the air and this purifier tracks 3 sizes. PM1.0, PM 2.5 and PM 10 which is very impressive where it captures odors too. What is the box: Shark Air Purifier 4(white), Remote, HEPA Filter. Installation and setup are very simple. Just remove the unit from box, remove the plastic from filter on the back. On the back there are 2 quick release latch that needs to be opened for attaching the filter. Just attach and close the filter door. Plug in the unit. It takes few minutes for the unit to calibrate for first time. You can use the remote or the menu on the unit for various settings. Touch control menu in color with different options to view in a quick glance is a great feature. There are 3 options to select for quick view. Air info, Auto Mode, Filter life. Features and the design is very institutive for quick access. Also, there are 2 display one on the top and on the front in color. You can increase or decrease or completely turn off the display brightness by hitting the button on the remote or on the control panel. Also, another great feature is the timer function where you can set it for different hours to run. Its very quiet when set in Auto mode where it automatically adjusts the fan speed depending on the air quality. Remote is very slim and curved on both top and bottom. It has got a big power button, Auto, brightness, info, fan increase or decrease control, timer button and works great with no issues. Display on the unit is piano finish and is a fingerprint magnet and requires cleaning if you want to look great. Pros: Attractive Sleek design and features Quite operation Timer function Remote Ease of operation 99.97% air purification with odor elimination. Cons: Filter cost (expensive – you can choose to get different filters from the website. Cheapest is $70 and goes up to $90 for anti-allergen HEPA filter with advanced odor & fumes lock). Overall, its an awesome air purifier with odor lock, nice slim design. Works well and will not disappoint if you are looking for fresh pure air at home.

Great at clearing the food oders from cooking quickly. Air feels fresh and helps with allergies.

Recently bought this for my house to help with pet hair and allergens, and so far it works efficiently. Its awesome, and also everytime you cook it deodorizeres the air so the smell of food leaves quickly. I highly recommend this product.

Product is superb! One of my best purchase this year and will probably buy 2 more of this brand! Shark products are the best! Thank you bestbuy for the best deals ever!

Quiet and efficient. Works great. I use this in our church and it works great!

Powerful and quiet operation. Can crank it up when necessary.

his is my first Shark Air Purifier. You want an air cleaner that will deliver clean air at a high enough rate to clean your space several times an hour and at a high level of filtration if you want to control dust ( and the bacteria and mold riding on the dust). This means less cleaning and vacuuming too. I worked with air cleaners on my job, so I realized this was an exceptional one.

Love it! So easy to set up, not too loud and has made a big difference in our air quality of our home!

I love this air purifier. Shark nailed it with this unit. When the Shark Air Purifier 4 first arrived, it showed up in a discrete brown box covering the main product box in full color and graphics, detailing many of the options and features I was about to embark on, the box grabbed my attention, and I was now getting excited about finally receiving the air purifier. After opening the box, the air purifier slipped out with ease, beautifully packaged nice and tight with plastic to keep any contaminants out. Once the purifier was standing, it was amazingly simple to set up. To set up the air purifier, remove the back by pressing two tabs, remove the bag around the filter, replace the filter, put the rear cover back on, plug the unit in, and press power. That easy. After the power button is pressed, you can watch the purifier read the air quality and that is where the magic starts. This unit has amazed me since the day we turned it on. It is so efficient and fast, its incredible. The air has a different feel to it now, it just feels clean, and my allergies have substantially subsided since the first day we turned this machine on. I am incredibly pleased about how quiet this air purifier operates. We use it in auto mode and like that best, I have noticed it kicks on when we are cooking sometimes and obliterates any smells from the kitchen. My wife was cooking shrimp and within a few minutes, the smell was gone. The fans are amazingly strong and can handle a large room with ease. The fastest fan setting is the only real loud one, and still, it becomes a background noise that you do not even pay attention to. I would have no trouble sleeping if it were in my bedroom, especially in auto mode. The two lowest setting fan modes, you can barely hear at all. This unit has been so quiet it kind of disappears in the room but does serious work with the air quality. One of my favorite things about the air purifier is the ease of use. The main display has touch screen-like buttons that are easy to read and understand. Setup and changing the filter is a breeze, it is too easy and takes seconds. Another thing I really like is that you can dim the lights on the unit. I have small children that were messing with the pretty lights, but after you dim it down to nothing, they pay no attention. This is a fantastic feature if this unit is going in a bedroom. I found the real-time reading of the different air particles fascinating, and kind of scary that I have been living with those particles for a long time. The purifier quickly got rid of all those air particles and leaves behind this presence of clean air that cannot be described, but only experienced. Overall, I am pleased with the Shark Air Purifier 4, it looks amazing and sleek, its quiet operation, and ease of use you cannot go wrong picking one of these up. When I walk into the house from being outside or at work all day, you can feel the air and how clean it is, it is amazing.

Work really well, super quiet and precise air quality control. Easy to use with just a click of a button.

This air purifier works very well and has very nice features.

This air purifier works well. The air seems to be lighter and It gets rid of the odors in my house. My dog is sneezing less since I got it. Just a little loud when it’s on high

Great air purifier super quiet and definitely worth it if you have allergies I have noticed my allergies stay more tamed with this. For some reason when you cook and don’t vent windows it detects air quality goes down. I’m sure that there are more particles in the air when cooking but not necessarily harmful.

Where we live, we’ve been getting more and more poor air quality alerts in our area, and this year our seasonal allergies were the worst they’ve been in a long time. In an attempt to combat this, we’ve decided to use air purifiers inside our home in the rooms where we spend the most time. The Shark HE401 air purifier was a great fit for our downstairs living room because it is an open floor plan flowing into the dining room and the kitchen, so the space is medium to large, at around 400 sq/ft. The machine itself is constructed using a lightweight plastic and is about the size of an 11 gallon trash can at 2’ tall, 17” wide, and 6” thick. It sits on a small plastic base with 4 rubberized feet for stability. The unit weighs just 17 pounds and is easy to lift and move around using the recessed handles on the sides. It comes pre-installed with a Shark HEPA filter w/odor locking carbon particles, however, you do need to unwrap the plastic on the filter before first use. On top is a glossy integrated display with touch controls that illuminate when the unit is powered on, and invisible when the unit is off, except for the power icon which is displayed as long as it is plugged in. At the touch of a button, you can adjust the speed of the fans, which have 4 levels, the amount of time the air purifier runs for: from 1 to 12 hours, the display’s brightness: high, low, or off, view air quality metrics, view the remaining filter life, or set the unit to ‘auto’ mode which uses Clean Sense IQ to detect air quality and continuously adjust the settings to remove the current level of air contaminants. I will say that the controls are pretty sensitive though and will activate with the slightest touch, which is a bit troublesome when cleaning/wiping the display on top. Also, adjusting the fan speed manually while in auto mode will cause the machine to exit that mode. The unit includes a remote control for all the same functions on the touch-control panel. The remote works well from a distance of up to 15 feet away, but the battery bay on the back requires a mini screwdriver to remove the screw securing the door, which is a bit annoying. Note that this is not a smart device and does not have any features that allow it to pair wirelessly to other devices, for example, through the use of Bluetooth or Wi-Fi, so it cannot be controlled using a mobile device or iot AI Voice Assistant. That also means that you won’t have access to historical data since it would not be recorded or tracked anywhere. The display on top will tell you information such as current air quality (as a percentage of “cleanliness” based on the number of particles detected in the air), fan speed, remaining time to reach 100% clean air, air pollutant levels of PM2.5, which are small particles like smoke and bacteria, and PM10, which are larger particles like pollen, dust, and mold. This air info is also displayed on an LCD on the front of the machine with a similar layout to the LCD on top. The unit draws in air from the rear through the filter using four fans to equally distribute airflow over the entire filter’s surface area. You should leave a foot or two of space behind the unit so that it can achieve proper airflow. When the filter door is opened the unit automatically turns off to prevent accidental damage or injury to or from the fans. The filter is easily removed using the attached fabric pull tabs and should be replaced every 6 to 12 months depending on usage and performance. There is a filter life function that will display on the LCD the remaining life of the filter; the default lifespan for a new filter is 4400 hours, which is equivalent to 6 months. Filtered air exits the purifier from both sides of the machine. At the lowest fan speed, it is very quiet and nearly silent. The noise level will increase with each increment of the fan speed, and at the highest level of four, the noise from the unit is equivalent to that of a window box fan. I like that the display can be dimmed and even turned off for use in a bedroom at night and since it is very quiet, does not produce any noise or light pollution that could interrupt your sleep. You can even set the auto shut off timer if you want the unit to stop operating after some time. In using this air purifier in proximity to the kitchen, I noted that the air quality sensors did show a predictable and appropriate increase in PM2.5 and PM10 particles detected during and after cooking, as well as when vacuuming, which tends to kick up a lot of dust particles. I was also happy to see these levels drop over time while running the air filter, and on the highest speed, the air filter was able to clear the room of a majority of airborne pollutants and odors within an hour or two after cooking or cleaning. What this unit doesn’t show you, though, are the VOC levels (volatile organic compound) which are chemical molecules released from furniture, flooring, and during other activities like cleaning and painting. While you can’t monitor VOC levels, you can still install the HEPA w/odor and fumes lock filter which would also help reduce VOC contaminants in the air as well. All three of Shark’s HEPA filters are compatible with this unit including the plain HEPA filter. Overall, whether we’re using this unit in the bedroom, the kitchen, or other living space, we feel that the air is cleaner and fresher, and we experience less sneezing and irritation indoors even on days when the air quality in our area is not good. Maintenance of the unit is easy and straightforward, and when set to auto mode, we can breathe easier knowing that the air inside our home is being continuously scrubbed of pollutants and allergens to protect our health and well-being.

This thing working great, it always sit on living room for the shake if kichen cooking smell,

Love the shark air purifier. It works so good, i was having some breathing issues due to the California fires and dust. Within 24 hours i could breath so much better.

Finally I got the air purifier I was looking for..it is a Quality made product with very nice features. Too console is very convenient if you are not using remote. It’s easy to operate.

My overall opinion about this expensive air purifier is just my opinion. I had to purchase it because my apartment flooded and I have mold. So I needed to make sure that I was in good health after my apartment was renovated to make sure things were done correctly. This also let me know that I was in good hands so a bit expensive but for a good cause. The filters are also expensive but hopefully will not need as often

GREAT QUALITY LARGE ROOM AIR PURIFIER SHARK AIRFINITY 4 AIR PURIFIER FAN Best Buy Tech Insider Network REVIEW: We are big “SHARK” fans around this household and the SHARK AIRFINITY 4 AIR PURIFIER FAN is no exception. The build quality is top notch and it is dead easy to operation. On top of that it does a good job and is on the quiet side of room air purifier. I assume this is due primarily to the large size for increased airflow. It is about 50% quieter than other air purifiers I’ve owned. PRO’s - Build in Color Screen Control Panel - No Fussy Apps to mess with. A simple remote and large display - In the range of 20-40db which is about 50% less than many others. - Easy to get to filters to clean / replace - Long power cord SETUP To setup the SHARK AIRFINITY 4 AIR PURIFIER FAN, basically pull it out of the box and remove the plastic from the filter and turn it on. Unlike other air purifiers I have used, you don’t have to fuss around with complicated poorly designed phone apps to run the unit. For me this is a big plus. I don’t need every appliance in my house to be “connected”. TESTING I have 2 different and very sensitive air quality meters that I use when deciding on an air purifier. Both showed a substantial reduction in fine particulate matter in the air. Keeping in mind my readings are low to begin with because I use filters and air cleaners, this brought down about 60% (from ~10 ppm to 4 ppm). This was in a 11x11 foot room after a few hours of use. I have a relative with high dust allergies, so I’ll be moving the SHARK AIRFINITY 4 AIR PURIFIER FAN around the house after I stir up dust while cleaning for father’s day. RECOMMENDATION The SHARK AIRFINITY 4 AIR PURIFIER FAN is large (check package dimensions), but that also enables it to do its job with less volume. It is very stylish and I would have no problems using this in any room or office. I fully recommend it.