We purchased the IQ Air HealthPro 3 years ago during a particularly bad allergy season. Even with over the counter medications both my husband and I constantly felt like we were sick. We balked at the price initially but after reading many positive reviews and reports we decided that it was worth a try, and we could just return it if it didn't work. We were able to purchase the unit locally and noticed the difference within the first 24 hours of using it. The instructions recommend to turn the unit on full speed for the first hour or so. The highest speed setting is fairly loud, but after it ran for a while we turned it down to a 3 and hardly noticed it. After the first night with it we woke up for the first time in weeks without stuffy noses. While it is quite expensive it lasts a long time and the filters only need to be replaced every one to two years (depending on the filter). If you suffer from bad allergies I would definitely recommend giving it a try. It is one of the only purifiers we found that actually performs as it says it will, and you definitely get what you pay for.
Grants Pass, OR