Fantastic product - We have pet birds that cause a lot of dust and down in the air. This air purifier really takes care of that. I could tell the difference the first day. It seems to be covering half of our house - about 1000 sqft. The best part of all is that the unit is very quiet - I had to recheck to make sure it was on.
This is one of the best purchases that I ever made. It is extremely easy to set up, beginning with removing it from the packing box. My nasal congestion has cleared up and I highly recommend this purchase.
This is the first humidifier I have owned. I like the 75i very much and it runs very quietly. Filter light is still on the first dot so either my home doesn’t have much to filter or it’s not working. I’m sure it does work well. I bought this as my husband recently had an accident breaking ribs and harming one lung. Trying to do everything I can to help keep him from getting pneumonia. I purchased one for our bedroom also. That one is also very quiet. Linda