While you shop around for the best air purifier, you might want to stop for a second and consider whether you should also be checking out the best personal air purifier too. With this in mind, you should put the InvisiClean IC-103 on your watchlist for its stellar battery life and portability.\r\n\r\nWhy We Like It - InvisiClean IC-103\r\nThe InvisiClean IC-103 Personal Air Purifier is a good showing as far as budget-level personal air purifiers go. It has a four foot range, which is one of the largest we\u2019ve seen on a personal air purifier, let alone a budget one, and the battery is the largest we\u2019ve seen on a personal purifier.\r\n\r\nPower\/Speed\r\nThe InvisiClean Personal Mini Air Purifier can generate a maximum of 3-3.5 million ions per second or 5 million ions per second of its plugged in. This isn\u2019t necessarily bad in terms of its performance, but it\u2019s not necessarily good either. We\u2019ve definitely seen much higher. Check out the AirTamer A310 for an example of that.\r\nEfficiency\r\nThe IC-103 actually has pretty decent coverage. It\u2019s meant for personal use, so it will only protect the air around you, but it can do so at about a four foot distance because of the built-in fan, which is pretty good. Check out the Dyson Cool Me for another example of a good area of effect range for personal filters. Further, battery life on the IC-103 is 240 hours which is the highest we\u2019ve seen, bar none.\r\nVersatility\r\nFor a personal air purifier as small as this one we weren\u2019t expecting anything more than a single-stage filtration or just an ionizer. And we were right. The IC-103 contains an ionizer that shoos away harmful airborne allergens such as bacteria, smoke, viruses, etc, just like most personal air purifiers. If you want something designed specifically for smoke, though, check out the Smoke Buddy Air Filter.\r\nDurability\r\nThe IC-103 weighs a measly 1.4 ounces so it won\u2019t slow you down whether you\u2019re carrying it with or if you have it worn around your neck. Where the IC-103 does fall a little flat is in its noise level. It can produce noise levels of about 60dB thanks to the cackling noise emitted from the ions. For comparison, this is about the same as normal, everyday conversion. For something you\u2019ll have close to your face for a good majority of the day, it\u2019s pretty loud.\r\nValue\r\nThere are actually two versions of this personal air purifier. One with a fan and one without. And the IC-103 is the one with the fan. And with that, we\u2019ve come to the end of the additional features the IC-103 has to offer. It\u2019s not all bad though. Amazon reviews are okay, if a little sparse. It\u2019s currently unavailable, but it shouldn\u2019t be too expensive when they finally get them back in stock. It does qualify as a budget purifier, after all.\r\nInvisiClean IC-103 Wrap Up\r\nIt should be noted that ionizers do tend to emit ozone, and the InvisiClean IC-103 is not an exception to that rule. But if you\u2019ve ever been on the fence about getting a personal air purifier, the IC-103 is a fantastic jumping off point. Just remember it has the tendency to get loud!