Review on 🌬️ LEVOIT LV-H133 Air Purifier Replacement Filter Set - H13 True HEPA and Activated Carbon Filters, LV-H133-RF, White by Salvador Taisacan

I have 2 units for different rooms. I got this filter 4 months ago in a residential area. What worries me is that my car has never indicated a need for replacement. stuck with blue. No pets. I decided to take a look anyway and wow the filter is really dirty. I have asthma and breathing problems so clean air is important. I've owned them for quite some time. The same block in the bedroom is still fine. I ride 2 there too. My dilemma is whether I need to invest more money if I'm not told to change the filter as soon as possible or try something else again. I just don't feel safe in general. It's the worst they've ever had.