I’ve had a ductless mini split method in my study room for years.
I wasn’t the original a single who installed it, although I guess the previous owners were. I was hesitant about using the ductless method because I’d never used a single before, however I’ve grown to love it, then since it’s mounted close to the ceiling, it’s out of the way & it blends into the wall. The ductless method runs off of electricity & the remote control is super easy to use. I can turn the ductless mini split component on & off, I can flip between heat & air, & I can adjust the temperature, however only having these 3 features makes it easy for me to heat & cool my room. The ductless method in my study room had consistently been great, but, I was beginning to notice a downgrade in my air quality. It felt love I was consistently dusting & vacuuming because dust & debri was settling onto all the surfaces at a rapid rate. I also observed that my dust sensitivities were flaring up whenever I was sleeping, which was unofficial for the time of year it was. Since I was a section of the annual Heating & Air Conditioning comfort club, I called an Heating & Air Conditioning professional to come look at the ductless unit. Upon hearing my issues & examining the ductless component himself, he told me that I needed to clean the air filter. I didn’t suppose the ductless mini split component had an air filter, so this was news to me! Now, I suppose what kind of maintenance needs to be done in the future.