I have two dogs and when I’ve ask company that has came over if they still smell my dogs, they said no. I’ve even notice the fresher smell when coming home. When cooking the air quality drops some and my Shark kicks in and gets it back to 100 after a couple hours. It’s quiet and when it runs on high, sounds like a fan running. Set it on auto and let it do the work! The air scents are nice and not overpowering. Invest! It’s worth it!

Sadly I can smell my neighbors cigarette smoke in my apartment so I bought this purifier. This piece of junk is NOT doing ANYTHING to get rid of the smell. I am returning this piece to crap and buying an IQAir. Just like everything you get what you pay for. First and last Shark I will ever purchase.

Sat April 04, 2026 initial product review. STRICTLY to inform a one star reviewer of misinformation that the HP305 is Fake because It is NOT a fake: (B®u©€ 03.27.25) (it is too soon to verify how well it preforms so this will need a revision... my first fear is that it will be prior to 5 years that I will need to replace the filter because I have to short hair cats... I'm really thinking within the first 6 months but this is just an assumption for now) The Shark HP305 and HP302 are functionally identical air purifiers within the Shark NeverChange MAX series, with the primary difference being color. Both units feature 5-year HEPA filters, odor neutralization, and Clean Sense IQ technology, delivering similar performance in odor reduction, particle filtration, and coverage.  Key Differences and Similarities: Color Variant: The HP302 is typically white, while the HP305 is black (or a different variant color). Performance: Both models (as part of the HP300 series) deliver the same air cleaning power, designed to cover large rooms up to 1,400 sq. ft. in 12 minutes. Filter Technology: Both utilize the same NeverChange HEPA filtration system, featuring a pre-filter and a 5-year lifespan. Features: Both models include odor neutralizer technology and automatic air quality sensing. Dimensions: Both share the same physical design: ~22.5 inches tall and an 11-inch diameter.  Ultimately, the choice between the Shark HP302 and HP305 comes down to color preference or price, as there are no functional differences between them.

Had this for less than 3 months and it stopped working. Tried contacting Shark customer service to see if they could trouble shoot anything prior to contacting the store. They refused to help. This is my first Shark product. Returning product back to the store.

So far it's great except for one MAJOR issue - the way eco mode works. I decided after several years with my old (different brand) air purifier, it was time for an upgrade. After shopping around I decided on this one (I went Into it already biased in favor of Shark / Ninja brand, as up until now I've loved every thing I've ever bought from the brand). Powered it up and thought everything was great, until I few hours later I began to pick up some cat litter box odors that I had never had before. My assumption was that the odor control feature of this purifier would absolutely ensure even better odor control than my old one, which had no such feature and cost half the price. Boy was I wrong. Since getting it several days ago, the only time it will come out of eco mode and turn on is if I'm cooking and some little something burns off when I turn the burner on. When that happens it comes on for a few minutes then right back to eco mode. The major malfunction comes into play due to the fact that there is no odor control of any kind when it's in eco mode - it's literally just turned off and sniffing the air for particles to see if it needs to turn back on. And cats going to the litter pan don't trigger it to turn on. So I thought that would be easy enough to solve - just turn off eco mode. Well, turns out that if you want the fan to auto-adjust at all you can't turn off eco mode - no way to set it to always run at minimal speed and ramp up when needed (like my prior unit could do). So my options now are to let a multi-hundred dollar device just sit powered off and doing nothing for me 23 hours out of the day, manually set it to always run at a low speed and have it do nothing to help the air quality when I'm cooking and it needs to turn up, manually set it to always run on high and deal with the noise and shortened 'neverchange' filter life - or return it and buy something else. As of writing this, I'm still undecided on which option I'll go for.

Purchased two units for 2100 sq.ft. house. They worked great for three months. Then they stopped working. Both units would only register 0 clean air. Cleaned the Hepa Filter per the instructions, cleaned all air screens including the sensor on the back. They worked....for two weeks and stopped again. Have cleaned the units every two weeks for three months. Today, neither unit will register. Cleaned them again for the second time in two days and still neither works. It is like they are talking/linked to each other...AI???? Shark replaced one unit but these units do not last 5 hears, they don't even last 1 year. Totally disappointed for the big money, not worth it.

I absolutely love my shark never change air purifier. I have the large one that does 1200 ft. I never realized how bad your air quality gets when cooking. I have this sitting in my living room and when I'm cooking it kicks on and the air quality is down in the 60's! Doesn't take long for it to get back up to 100%. When you walk by and see it says 100% it gives you a sense of calm knowing you're breathing the best air possible. I've decided to buy a small one for my bedroom. ❤️ 🦈

Can't live where I'm living without! Why? One tenant smokes which somehow I can smell. I have a feline which I'm allergic to. Shark cleans it all. Moreover, love the long lasting HEPA filter which is a huge factor to owning this unit. Any smell will show up on the filtration meter. Thank you Shark!

This Shark air purifier is ready to go in a snap, you just pull it out of the box, remove the plastic off the filters and plug it in. The speed in which this starts to clean the air is impressive. We don't have carpet so we used to see little particles in the air when the sun shone through and now we rarely do. It kicks on automatically when the air quality gets low and that's the only time it is loud. Otherwise it is extremely quiet. You could easily bring this to different rooms if needed and it's very easy to see the display and where your quality is sitting.

Bought this and now for almost a year I haven't been able to get a new filter to replace the old one. Extremely frustrating when you can't get the replacement you need especially when you live in a wild fire prone area in summer . You must have replacement items available or it makes the product expensive and useless!