There\u2019s plenty of different types of air purifiers that can qualify as the best air purifier. There\u2019s plug-in purifiers, filterless purifiers, and personal air purifiers. And if you\u2019re looking for the best personal air purifiers, you should put the AVICHE W3 on your consideration list for its portability and long battery life.\r\n\r\nWhy We Like It - AVICHE W3\r\nAVICHE W3 Personal Air Purifiers are another example of something that\u2019s \u2018budget\u2019 that can still hold its own against the more sizable competition. It\u2019s filterless, so you won\u2019t have to incur any extra costs, and the coverage area is impressive for something so small and inexpensive.\r\n\r\nSpeed\/Power\r\nThe W3 Wearable Air Purifier has an impressive negative ions output of 20 million pcs\/cm3. This helps to definitively shoo away contaminants around your personal bubble. You can also check out the AirTamer A310 for another example of a powerful device. Battery is also good at 25-30 hours per charge. Not the highest we\u2019ve seen, but still good enough.\r\nEfficiency\r\nThe AVICHE W3 is able to create a protective bubble of about three feet in every direction. Impressive for a budget air purifier, and great for people who want to take it with them on road trips or plane rides, you can also check out the Dyson Cool Me for something with a little more coverage. On the downside, the noise level is around 20dB which is a little loud for something you have to be constantly close to.\r\nVersatility\r\nThe W3 can fight and remove bacteria, smoke, allergens, and all other manner of pollutants and contaminants. In fact, it can prevent 99% of germs as small as PM2.5 from getting in. Just be aware that it only prevents them, though, it doesn\u2019t destroy them. If you want a personal air purifier designed specifically for smoke, check out the Smoke Buddy Air Filter\r\nDurability\r\nOne of the main draws of this personal air purifier is that it doesn\u2019t require filters so you\u2019ll be saving on that cost. Further, at 1.75 ounces, it\u2019s one of the lightest and most portable air purifiers we\u2019ve seen. Not the lightest, but nothing to complain about. So if you\u2019d like to take it with you on a car ride, or on a plane ride, or just out walking with you, or to the office, it shouldn\u2019t slow you down at all.\r\nValue\r\nAmazon reviews are good, at 4\/5 stars, if a little scarce, at 41 reviews. One of the best things about it is the price. If you\u2019ve ever been on the fence about getting a personal air purifier, this one\u2019s measly $30.00 price tag should be enough incentive to at least buy it to see if they are right for you. If they are, great, if not, then at least you haven\u2019t broken the bank.\r\nAVICHE W3 Wrap Up\r\nThere\u2019s always going to be setbacks when it comes to budget items. In this case, the AVICHE W3 is a little noisy considering you have to wear it so close to you at all times. But if you\u2019d like to test the waters to see if you will indeed get an extra boost of energy with personal air purifiers, the W3 is an excellent jumping off point.