I’m constantly cleaning. I live alone in a 100+ year old building. It’s no exaggeration to say that there’s a coating of dust moments after I get done dusting.
I use a microfiber duster for daily cleaning and a heavily diluted mixture of water, vinegar, and soap for deeper cleaning.
The only thing I can think of, but haven’t tried, to minimize dust accumulation is to run a humidifier. That should theoretically give the dust particles something to cling onto and be less prone to becoming airborne as you move about. Perhaps a daily water misting from a spray bottle could work - I should give that a try.
I have an air purifier in my bedroom. It doesn’t do very much. I don’t really understand how they’re supposed to work anyway. There’s no way it’s going to suck in dust from the other side of the room. I wonder sometimes if it actually makes things worse. I use it mostly for the white noise to sleep with.
I have one that claims “Circulates the air 1x per hour in 743 square foot rooms and 4.8x per hour in 153 sq. ft rooms”. My room is 180 square feet (12x15).
The concept itself doesn’t make sense to me. You’ve got a single box that both sucks in air and blows it out. It would seem to me that this just creates vortex around the box itself with some minimal air movement in the rest of the area.
A proper air purification system would need to be part of your home’s central HVAC system where it’s been engineered to suck in the air from one side of a room, filter it through the system, then blow it back out on the other side of the room. And / or several smaller air purifiers strategically placed within a room.
I’ve done a bit of searching and surprisingly have not been able to find a rally good study. This would seem easy enough to qualify with some knowledge of fluid mechanics. I found this video https://www.youtube.com/watch?v=NinsW8f2ABk The room is about a third the size of my room and the purifier is about 50% larger. The in/out design of this device is dramatically different from mine. I have a hunch that the consumer (Amazon) air purifier market is mostly garbage.