The air quality in my apartment. Are these normal levels for Shinjuku?


(Please note the date is wrong. Have not set it yet. The readings are from today)

Wife and I have been having bronchitis now for a month and frequently suffer from headaches and coughs all year around, so I bought a monitor to figure out if the air quality was bad.

These are the results.
We do not cook or use the aircon to heat. I am curious if these are what you would call normal levels for an apartmemt in Shinjuku?

If not, then who do I call to find the source of the air pollution? I doubt our building manager can do anything else than tell us to keep the windows open, which we already do.

by yukirainbowx