I like the shape and look however at low speeds it makes a clicking sound. I have to turn it off at night since it located in the bedroom. Annoying.
No, I would not recommend this to a friend.
Response from www.blueair.comBy Blueair Team, Blueair, October 27, 2025
Thank you for sharing your experience with your Blue Signature Nordic Fog. We're glad you enjoy its design but sorry to hear about the clicking noise at low speeds. That’s not what you should expect from your new purifier. We’ve reached out to you directly to learn more and help get this resolved so you can enjoy quiet, uninterrupted clean air.
The Blue Signature is their best model. I have 2. Love them. Stylish and quiet. Works beautifully. I work with a surgeon whose husband is a Pulmonologist. He researched air filters and said Blue Air came out on top. They have them all over their house. That’s why I bought them. I also have a small and larger Blue Air in different models but the Signature model is my favorite. Great product. The only model I didn’t like was the nighttime one with the alarm. The led light can’t be shut off and it illuminates your bedroom all night. But the Signature model is awesome!!
The Blue Signature is their best model. I have 2. Love them. Stylish and quiet. Works beautifully. I work with a surgeon whose husband is a Pulmonologist. He researched air filters and said Blue Air came out on top. They have them all over their house. That’s why I bought them. I also have a small and larger Blue Air in different models but the Signature model is my favorite. Great product. The only model I didn’t like was the nighttime one with the alarm. The led light can’t be shut off and it illuminates your bedroom all night. But the Signature model is awesome!!