I’m in my 60s’ and have had allergies all my life. I have been to numerous doctors to receive series of shots to help my allergies and boost my resistance to pollen & mold. None of which worked, I always carried around tissue paper for my running nose. I have tried several over the counter allergy medications but found myself back with the same issues especially in the spring time. My AC guy installed a UV light in the air handler, between the blower & evaporator coil. After 24 hours all my sinus issues went away, I’m kicking myself for not installing this earlier!