Depends on your house, air quality outside, and air quality inside but a cheap air quality monitor has shown my that an open window can clean up the air 5x faster than an air purifier.
Even during the winter or summer there is usually a small window of time (excuse the pun) that the air temp outside is about the same as your desired temp. Lots of houses have an oversized heater to account for open windows in the cold.
Window fan can expedite the process, you can get sneaky about which direction you run fans to create circulation throughout the house. Try not to create negative pressure in your house (don’t blow more air out than in) especially in your basement due to radon and other bad things with negative pressure.
I try to use windows as a plan A and HEPA filters as a plan B. I recognize this is a luxury of having good air quality outside in my area.
Forget where I read it, but this Idea seems similar. When responding to a request, being upfront about your boundaries or constraints feels intense but can be helpful for both parties. If Bob asks Alice to help him move, and Alice responds “sure thing” that leaves the interaction open to miscommunication. But if instead Alice says, ” yeah! I am available 1pm to 5pm and my neck has been bothering me so no heavy lifting for me!” Although that’s seems like less of a kind response Bob now doesn’t have to guess at Alice’s constraints and can comfortably move forward without feeling the need to tiptoe around how long and to what degree Alice can help.