My mom has serious asthma and is always plagued with seasonal dust irritations. She resides in the same apartment that she and my mother bought together back in the 1976s and insisted on staying there even after my mother died many years ago. That means that there is potentially dust from years ago still settled in small nooks and crannies all throughout the house. When I installed an whole-apartment air purifier, I kept getting so much microbial buildup on the filter that I had to abandon the unit altogether after I burned through many machines in a more than two month period. At last, I thought to try installing UV-C bulbs in my dad’s heating and cooling system. These extremely bright ultra violet lights kill any airborne particles or contaminants that come near them. So as the air circulates through the Heating, Ventilation and A/C system, it pass over these bulbs all the time, taking out more microbes and contaminants each time. But, the effect isn’t immediate, and I had a load of some problems convincing my father to be patient and provide the new modification time to work. Thankfully, after so many weeks of the UV-C lights being installed in my dad’s heating and cooling system, he’s noticing less dirt and pollen around the apartment and her breathing and dust irritations keep improving each week. Even though she was skeptical at the start of it all, she doesn’t doubt the beneficial effect the lights have had on her apartment and her health. I just really hope this effect continues well into the future. It seems care about the only other option all of us would have left would be a central air purification system, but that’s going to set my father back even more cash. But over some weeks, the UV-C bulbs might be all that she needs to live healthier every week.