Bests & Worsts Reviews from Amazon

I have a mixed review about this. On one hand, it does what it says it will do I believe. I feel the air is cleaner and easier to breathe. Although it feels like it dries out the air for some reason. I also do not detect any sort of ozone either, as ozone generators or even negative ion generators that produce ozone give me issues with my nose and eyes. I feel more energized using this for sure. I actually feel a tad bit jittery. It’s great for studying or trying to focus on something, and it does feel like it boosts my mood a bit too. BUT, I find that when I try to sleep with it, it keeps me awake oddly enough. I don’t feel as tired running this. It also later wakes me up due to noise. Another quick note about odors, it’s supposed to give-off no odors, or if you do smell something, it is supposed to smell like a fresh rain storm. I do not smell any sort of rain-storm odor from using this... I smell, nothing. It’s weird, but it strips every odor away. That’s a good thing. The build quality is decent too, and it even comes with a snazzy box and traveling pouch! Nice touch! Where I am a bit disappointed is the amount of noise it generates. I am okay with the fan noise, but it randomly makes an intermittent high-pitched squealing noise that makes keeping it on it the bedroom overnight impossible. I had to shut it off after only 3 hours in the bedroom. Even in my work office, it gets annoying and generates stares from others out of annoyance. It’s not super-loud, but loud enough that it gets bothersome. It’s hard to describe, and so I took a video and will upload it here for you to see. One video will be the normal noise of the unit, and the second longer video will show you the loud squelching noise. Another quick thing to note is that if you plug this near your computer, and you have an aluminum Apple computer, you will give yourself a mild shock every time your skin touches the computer. That’s no fault of the device, and common with any negative ion generator. Just something to keep in mind if you want to keep this on your desk. I don’t suspect you will have that issue with a non-metallic computer/device. I will probably keep this unit for the health benefits of preventing sickness, but if the noise gets worse, I may be forced to return this sadly. The size is great otherwise (it fits in the palm of your hand) and it is very sleek and modern looking. 3/1/18: EDIT - Spoke with Ryan from Pacific Ion and he recommended blowing a puff of air on the fan area with the unit off. Voilà, noise problem solved! Must have been a few flecks of dust on the emitter. I give this little guy 5+ stars now!