REAL has acquired simple monitor for measuring home air quality that it is willing to lend.
The Temtop M2000 2nd Generation Air Quality Monitor operates on a rechargeable battery. With it you can measure fine particles (PM2.5), course particles (PM10.0), carbon dioxide (CO2) and formaldehyde (HCHO), as well as temperature and humidity.
A little video on how to operate it is available here.
Please contact [email protected] if you would like to arrange to borrow it.