Nice Air Purifier (Update)
I have had this for a couple weeks now. Use it in the living area during the day and bedroom at night. I have noticed much less dust accumulation on my furniture. I don't wake up with nasal congestion anymore. I checked the filter a  few days ago and it had some dust in it. I also compared filter color to a new filter that I had purchased to have on hand when it is time to replace the original one. The unused filter is whiter than the one currently in the machine. I am assuming it is doing what it is meant to do. The only issue I have is I have noticed that the fan speed changes sometimes on its own. Perhaps it has a sensor for air quality. However I haven't read that this particular model the Cayman 608 has that capability.  So far I am happy with the purchase.<br />I have noticed that some of the reviews are unhappy with the space that is advertised that the air purifier cleans. The specifications state under air changes per hour (circulates air 2x in rooms of 578 sq. ft/ 5x in rooms of 231 sq ft. It appears that air is being purified in rooms close to 600 sq.ft just not at the faster rate.<br /><br />Update:  August 8, 2022<br /><br />The filter replacement blinking light just came on today. I purchased this air purifier in March of this year 2022. It has been running on high non stop and today is August 8, 2022. I have cleaned filter almost weekly to removed dust that had accumulated.. I have kept the purifier in my bedroom all summer with the A/C on and door closed.  I honestly believe that it has kept dust to a minimal.  I have almost no nasal congestion when I wake up in the morning, and far less dust on furniture in my room. I have no way to judge whether it is cleaning bacteria and virsus from the air but I haven't had any illnesses. I really like the simplicity of the product. I have noticed that the machine does change speed occasionally by itself but I don't have an issue with this. I just turn it back on high when I notice this happening.  I noticed that it is out of stock on Amazon.  I hope it comes back as I would like to purchase another one for other areas in my home.  I guess I better order another filter to have on hand in another 6 months or so! Haven't checked to see if filter is available, I hope so!!  I certainly feel I am getting my money's worth from this air purifier.
Rating: 5 stars