If you want a purifier that looks like something out of Star Trek, the InvisiClean Stella is a great choice. An air purifier with a polygonal shape sits on a circular base with a USB port and three buttons: power, ion, and off.
Power is controlled by the on/off button and fan speeds (low, medium, high) are controlled by the ion button. In traditional air purifier mode, you should use the ion button. With the ionizer setting, the purifier becomes a humidifier.
Although it feels very sturdy, there is no handle or strap to make it easy to carry.
Filters are available in five types: H13 HEPA with an activated carbon prefilter, H13 HEPA with ultraviolet C light and an activated carbon prefilter, and dual H13 HEPA with both anti-allergen filters.
Within half an hour, the Stella had cleaned our test room of 93% of airborne particles. Our test room showed that it was also capable of effectively removing pet odors after just two hours, reducing them significantly. However, it lacks any settings specific to pet dander.
