Excellent work!! Best compliments to Dwight!!! We have two heater and two A/C independent systems. Air Assist installed a Media Filter and an UV light on each system plus performed a complete duct cleaning. They have completed a full check on the two heaters as well. Dwight has done a great job at a fair price. We are extremely pleased with the air quality. It is an unbelievable improvement. I would highly recommend it, especially when you have kids, but I would say its good for everybody regardless the age. We have got a maintenance plan with them, so soon they will come back to perform a complete check on the A/C system as well.