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 W1 Necklace Wearable Mini on your consideration list for its portability and long battery life.\r\n\r\nWhy We Like It - AVICHE Necklace Wearable Mini\r\nThe AVICHE Necklace Wearable Mini is 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\nPower\/Speed\r\nThe AVICHE M1 has an impressive negative ions output of 20 million pcs\/cm3. This helps to definitively shoo away contaminants around your personal bubble. Similar products include the AirTamer A310 which is another example of a powerful device. Battery is also good at 35-40 hours per charge. Not the highest we\u2019ve seen, but still good enough.\r\nEfficiency\r\nThe AVICHE Necklace Wearable Mini Personal Air Purifier 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.\r\nVersatility\r\nThe W1 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 wearable air purifier necklace is that it doesn\u2019t require filters so you\u2019ll be saving on that cost. Further, at 1.76 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 just out walking with you, or to the office, it won\u2019t slow you down.\r\nValue\r\nAmazon reviews are good at 4.5\/5 stars based on 121 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 $40.00 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. It\u2019s not the cheapest we\u2019ve seen, but again, nothing to complain about.\r\nAVICHE Necklace Wearable Mini Wrap Up\r\nThe AVICHE W1 is an excellent air purifier to get you started if you\u2019ve been on the personal air purifier fence. It shares a lot of similarities with its cousin the W3. The drawback? The W3 is $10 cheaper. The W1 may be quieter though. So it\u2019s really a decision you have to make yourself if you\u2019re willing to spend $10 more.