I developed CAT allergies, I rescued cats, I have 3 indoors & 15 barn cats. I take allergy shots weekly and until I bought the SANS I would wake with eye crusty, the cats would even sneeze. The Sans is on auto constantly and the first day I plugged it in it stayed on RED by the morning it was BLUE. As we walk around the Sans will change colors ....
A week in and NO MORE eye crusty and the AIR is Clear, no more particulars floating around. I bought 1 whole house unit, my living space is about 800 sqft due to 10' ceilings.
I am on the shipping list for filters.
THANK YOU for a better breathing living environment.