Bests & Worsts Reviews from Amazon

This air purifier is small, quiet, and seems to do a good job (the impact isn't hugely noticeable, but I'm not sure it would be with any system, as we're focused on allergens vs. odors). A couple things to note, though: 1) It comes with a USB cable but no plug, so you need to have an available plug or place to connect it (and it's not entirely obvious what wattage it requires - I'm using a 2W plug, which seems to work). Given how cheap usb chargers are these days, it seems odd to me that they wouldn't include the plug. 2) When it says the night light can be dimmed, that's what it means. Not turned off, but reduced. If you're looking to put this in a bedroom for use at night, be prepared to have a blue LED on all night. And it can't be covered, as it's inside of the vent, so covering it would block the airflow. Besides those caveats, it seems like a nice product at a good price.