Indoor Air Quality Solutions, IAQS did a wonderful job for me. They were friendly and professional. They were very knowledgeable and they explained things well. I was very impressed with their responsiveness in terms of the initial contact, requests for proposals, more information, and/or clarification. They responded immediately to me. This stood in stark contrast to their competition. I would definitely recommend Indoor Air Quality Solutions, IAQS to everyone needing these kinds of services! They are way ahead of the other companies in their line of business!