The Partu Air Purifier is one of the most unique air purifiers on the market. Unique because it includes features like a child lock and fragrance sponge, which are not normally seen. It comes at a price though, such as a short filter life and nor being Energy Star Certified. Our best air purifier under 100 can give you even more air purification information, so check it out!\r\n\r\nWhy We Like It - Partu HEPA Air Purifier\r\nPartu HEPA Air Purifiers may not be as big of a brand name in air purifiers right now but they will be if they keep making products like this. The people at Partu have added features into their air purifier that no other company has, such as a child lock and fragrance sponge, and have thus made a purifier that stand out from the rest\r\n\r\nPerformance\r\nThe Partu HEPA Air Purifier features a three-stage filtration system: a pre filter, a true HEPA filter, and an activated carbon filter. You can also check out the Levoit Filtration Eliminators Vista 200 for another example of a three-stage filtration system. All three systems work together to eliminate pet dander, smoke, pollen, odour, and many other air destroyers for superior air quality. The noise level ranks at 38-59 dB, which is pretty average and on-par with the Partu BS-08, Partu\u2019s other main air purifier.\r\nDesign\r\n"One of the coolest things to review Partu Air Purifiers on is their child lock, a feature which isn\u2019t included in other air purifiers. Press and hold the lock button for three seconds and to avoid children or pet\u2019s changing settings during their curiosity. The fan speed settings (there are three) are also located close to this lock button. I question this only because it would be easy for a child to hold a button down for three seconds to unlock it. It would have been better to place the lock button, or fan settings, somewhere else. Check out the GermGuardian GG1000 Pluggable Deodorizer Guardian if a child lock isn\u2019t something you need.\r\nValue\r\nAnother cool feature to mention in this Partu Air Purifier review is the ability to add a drop of essential oils to the fragrance sponge. The unit will not only clean air but leave it smelling fresh or fruity or whatever fragrance you placed inside. The unit is ozone free, which is always a plus, and is rated to clean a room up to 107 square feet. Because it was made for small rooms, the GermGuardian AC4825 may be a better option if you\u2019re in a room bigger than a home office or small bedroom.\r\nPartu HEPA Air Purifier Wrap Up\r\n"It\u2019s always great when a company decides to include features in a product you wouldn\u2019t normally think of. It shows they are serious about trying to break into the market. It\u2019s unfortunate it has to come at a sacrifice, like a short filter life or incredibly small square foot coverage in the Partu HEPA Air Purifier\u2019s case. Let\u2019s hope they fix these, and retain their unique features, when they get a firmer foothold in the marketplace.