EFGHONG Air Purifier with True HEPA Negative-ion & Activated Carbon,Indoor Mini Air Cleaner Filters 99% Smokes/Dust/Pet Dander/Mold During Night Light, 3-in-1 Air Purifier for Home & Office.

I bought this because I have really bad allergies at night and my nose completely closes up to where I can't breathe. I was hoping it would work but after letting it run for days, I looked at the filter, and it looked brand new. I was hopeful it would work but every night my nose still clogs up.

Have yet to clean. Just purchased and set up. Noise level is low.

The package was all beat up and the item was covered in dirt on the inside? The filter was clean though it was just the inside. It makes me think it was used and this was dirt from someone else using it. I just cleaned it off, sanitized it, & popped the filter inside and it seems to be working fine. 3 stars though because it’s gross that it arrived this filthy.

You can imagine the size of the portable things and yes, it is very small and convenient to carry out.I usually put in my car and bring it to the office. The air in the car is very dirty in the morning, this little thing can do the clean work. You have options to open the windows, but not for the raining days and summer. I use it to clear the air out from the air conditioner.Put in the office is more for decoration than its functionings. I love white things.

It's the best quality for it's price. It's not meant to be industrial or for a large space and its really good for personal use. If you want to plug it into a wall you need the same adapter a phone charger would need otherwise it's USB.

It’s stopped working after a month. I tried to return it but it was past the return date.I was excited because it’s small and quiet. Yet not recommended for long use. Maybe I received one that was defected so that’s unfortunate

This purifier does what I need and is very portable to uses wherever it's needed in my home. I might purchase another one to use in my office.

Super quiet and effective. If you're on a budget, you can't go wrong. I've been keeping it in my room with the door closed and there is a noticeable difference between my room and the rest of my apartment