I used Indoor Air Quality Solutions, IAQS to have my air quality inspected, as I wanted to know the levels of things such as humidity and carbon dioxide. I was referred to the company by my sister, and when I called in they were professional and courteous. They scheduled the appointment around my needs. The technician who came out was very knowledgeable and professional. It was excellent. This was my first time using IAQS, and if I ever needed these types of services in the future, I would not shop around, I would use them first.