9 of the manual refers only to the two HEPA filters. So, my question is: Does this air purifier have a carbonised pre-filter? If so, where is it located and can it be serviced? Finally, I cannot see any blue light from the UV tube, so I am not sure it is working
Health & Beauty - Homedics - Ar-45 Oscillating Tower Hepa Air Cleaner with Uv-c Light