This house has no central air if it did you really think i would of spent $200.00 on a window air conditioner??
It only has a Furnace which supply Heat not central air and even my roommates turning the heat on for 10mins last night my room got warm now imagine if those floor vents were untapped I probably would if gotten hot upstairs.
Don't assume things you don't know.
And how does one propose heat is distributed throughout the home without air
movement ?
I didn't say you had central A/C at any point. Even with air movement, resulting in a slight increase in temperature & an A/C unit cooling that air, you're encouraging air
movement.
Blocking your vents in the long-run is not a good idea.
The only thing that's changed since I bought this air purifier originally to now is blanket that sits over top of the taped air vent near my window.
Nothing else litterly everything else is the exact same to when I bought it so yeah I highly doubt a blanket that went through the wash and dryer less then a week ago would be creating dust laying on the floor.
It goes in with the rest of my blankets every week when I do laundry so yeah might wanna try not filter with someone who's not changed a single thing in my room other then that.
Over a four month period, literally everything remains exactly the same in your
environment (read: Not your room)?
Outside of a clean room, that is impossible.
Your room does not exist in a vacuum. Is there construction in the somewhat immediate area? Has it been windier lately? Is one of your roommates slacking on their hygiene &/or cleaning in generally? Is it hotter/colder than it was in May?
As you, or someone else open doors (to your room or the house in general), significant air movement occurs. In an older homes especially, they're nowhere close to air-tight to begin with, so air movement is constantly occurring.
All this is before we even get into the potential for humidity, which can compound the issue.
Think of your computer, for a small-scale exaggeration.
Assume perfectly clean on the inside. Then have a pet sleep directly infront of fans pulling air in.
Yes, everything inside the PC is "literally the same", but the external factors now differ.
Don't assume things you don't know.