Raw data of PM2.5 and CO from an indoor wood-combustion experiment. We evaluated the performance of two low-cost sensors measuring fine particulate matter (PM2.5) (HAPEX Nano, Climate Solutions Consulting, and TZOA-R Model RD02, MyTZOA) and one measuring carbon monoxide (CO) (EL-USB-CO, Lascar Electronics Ltd.) in a real-world wood-combustion experiment. PM2.5 devices were compared against a DustTrak (Model 8534, TSI Inc.) and a BGI pump (BGI4004, BGI Inc.) and the EL-USB-CO data-logger was compared against a Q-Trak (Model 7575, TSI Inc.). Sampling was conducted in a single-family house in Terrassa (Spain) during five non-consecutive days. All devices were co-located 1 meter away from an indoor fireplace and 0.6 meters above the ground. Fire was set once per day with hardwood logs and kept burning for 12 hours including a minimum of 2 hours with an opened window. The data provided is the raw output from all the devices tested for the 5 sampling days aiming interested researchers to play with the data and reproduce our findings.

Sampling was conducted in a non-smoking private single-family house in the municipality of Terrassa (Spain) during February-March 2016. There are 16 files of .txt format and 7 files of .csv format. The lightest file is 3KB and the heaviest 371KB. Counting all 23 files , there are 2,01MB.
Files from the HAPEX device are those which start with “HAPEX”. The following numbers correspond respectively to sensor ID_Day_Month_Year_Hour_Minute_Second of the sampling start. Files from the TZOA-R device are those which start with “TZOA”. The following 4 digits correspond to the sensor ID. Files from the DustTrak device are those which end with “dusttrak”. From 22 Feb to 25 Feb the number of the files’ name corresponds to DayMonthYear (DDMMYY) and HourMinute (HHMM) of the sampling start. In contrast, from 29 Feb, the number of the files’ name corresponds to DayMonthYear (DDMMYYYY) of the sampling start. Files from the EL-USB-CO devices are those which end with “co”. From 22 Feb to 25 Feb the number of the files’ name corresponds to DayMonthYear (DDMMYYYY) of the sampling start plus DayMonthYear (DDMMYYYY) of the sampling end. The numbers before “co” correspond to the sensor ID (e.g. “1co”). In contrast, from 29 Feb, the number of the files’ name corresponds to DayMonthYear (DDMMYYYY) of the sampling start only. File from the Q-Trak device is the one that ends with “qtrak”. The number of the files’ name corresponds to DayMonthYear (DDMMYYYY) of the sampling start. File from BGI concentrations is the one that start with “BGI”. This is a database where the variable corresponding to the PM2.5 concentration is called “PMconcentration” (reported in µg/m3).