I contracted a flu like cold and bronchitis back in November, and it lingered on for three months with persistent coughing. It's the longest I've ever been sick. After countless visits to the GP and lung doctor, it appears that I may have developed asthma as a result of the bronchitis. I find myself very sensitive to polluted air now, where previously it only bothered me a little bit.
I had lots of down time while sick to research air purification. I've always thought the industry was mostly smoke and mirrors and had a hard time believing that these devices really work. From my research, I learned that manufacturers generally overstate the capabilities of their air purifier equipment and recommend room sizes that are significantly higher than what the equipment can really handle.
There seemed to be an overwhelming amount of reviews on the IQAir Health Pro Plus, and the almost unanimous opinion that it's the best one you can buy. At $899, it's not cheap. But I've had one for a month now and I notice that I can be coughing almost non stop in my living room, and if I head up to the bedroom where the IQAir is, I stop coughing almost instantly and never cough even once while I'm in the room. So I have to say I'm really impressed with it. I wish I had known about this unit years ago. It would have really improved my quality of life.
Being a engineer at heart, I was troubled by the fact that I couldn't measure exactly how the IQAir was performing, even if it was making me feel better. So I invested in a Dylos DC1100 Pro laser particle counter so that I could measure the particulate matter in my house, both before and after using the IQAir.
My average particle count on a relatively good day is 160,000 particles per cubic foot. On a smoggy day, the number jumps to over 300,000. If I measure the outdoor air, it has been as high as 700,000.
In my bedroom, with the IQAir running on full power, the count drops to about 15,000. Sometimes it goes down as low as 8,000, but generally on a bad day I can't get below about 15,000. My bedroom is 700 square feet with high ceilings, so I'm pushing the limit of what the IQAir can handle.
But I love having the particle counter. It tells me exactly what the air quality is, and whether I need to crank the IQAir up to full power, or if its safe to lower it or even turn it off. And it confirms my somewhat subjective observation that I don't cough when I'm in a room where it's running.
There are certainly other good air purifiers out there that cost less, but I would find it hard to evaluate if they were working well without a particle counter to confirm the results. Many of them are just fancy fans with very basic filters in them that don't do much of anything. And consumer reports has some very sketchy testing methods which make their results look suspicious to me.
I am evaluating the IQAir Perfect 16 whole house system as a possible option for the rest of the house. If it can keep me from coughing in the rest of the house, it's worth every penny.
It's certainly been a fascinating topic for me to delve in to, and I've really enjoyed learning about the industry. If anyone else is thinking about buying one, feel free to PM me. I've probably spent more than 100 hours reading about them by now. And, I'm feeling better.