I received a coupon for a $70 air duct cleaning. Three men arrived. They kept trying to stear me away from the guy who was actually doing the supposed cleaning while they tried to sell me more stuff. They wanted to charge extra for everything. I said I only wanted the $70 job. They then talked me into purchasing a Safeguard UV light Cleanser. They stick it inside the central air unit to sterilize germs and mildew and said I would never need duct cleaning again so it would be worth the price. They also ordered a custom filter that was suppose... read full review »