The friendly and professional associate who helped me out was outstanding. I received my products just a few days later and the packaging was also very impressive. I have been using my new air filters and cannot believe the difference. I normally suffer from a terrible dust allergy and this fond of year when we have to turn the heat on is always difficult. Since I received my new unit, I have felt great. No stuffiness and I've noticed the dust is barely on my furniture the way it usually is (even the day after I clean). We also had our carpets cleaned yesterday and I couldn't stand the smell (nor could my son with asthma). I placed the unit in my bedroom and the smell was totally gone. We are going to order a few more for gifts for our parents for the holidays. Very very pleased!