date,co2filtered,co2raw,sensor_temp 08-04_1200,nan,nan,nan 08-04_1201,nan,nan,nan 08-04_1202,nan,nan,nan 08-04_1203,nan,nan,nan 08-04_1204,nan,nan,nan 08-04_1205,nan,nan,nan 08-04_1206,nan,nan,nan 08-04_1207,nan,nan,nan 08-04_1208,nan,nan,nan 08-04_1209,nan,nan,nan 08-04_1210,nan,nan,nan 08-04_1211,nan,nan,nan 08-04_1212,nan,nan,nan 08-04_1213,nan,nan,nan 08-04_1214,nan,nan,nan 08-04_1215,nan,nan,nan 08-04_1216,nan,nan,nan 08-04_1217,nan,nan,nan 08-04_1218,nan,nan,nan 08-04_1219,nan,nan,nan 08-04_1220,nan,nan,nan 08-04_1221,nan,nan,nan 08-04_1222,nan,nan,nan 08-04_1223,nan,nan,nan 08-04_1224,nan,nan,nan 08-04_1225,nan,nan,nan 08-04_1226,nan,nan,nan 08-04_1227,nan,nan,nan 08-04_1228,nan,nan,nan 08-04_1229,nan,nan,nan 08-04_1230,nan,nan,nan 08-04_1231,nan,nan,nan 08-04_1232,nan,nan,nan 08-04_1233,nan,nan,nan 08-04_1234,nan,nan,nan 08-04_1235,nan,nan,nan 08-04_1236,nan,nan,nan 08-04_1237,nan,nan,nan 08-04_1238,nan,nan,nan 08-04_1239,nan,nan,nan 08-04_1240,nan,nan,nan 08-04_1241,nan,nan,nan 08-04_1242,nan,nan,nan 08-04_1243,nan,nan,nan 08-04_1244,nan,nan,nan 08-04_1245,nan,nan,nan 08-04_1246,nan,nan,nan 08-04_1247,nan,nan,nan 08-04_1248,nan,nan,nan 08-04_1249,nan,nan,nan 08-04_1250,nan,nan,nan 08-04_1251,nan,nan,nan 08-04_1252,nan,nan,nan 08-04_1253,nan,nan,nan 08-04_1254,nan,nan,nan 08-04_1255,nan,nan,nan 08-04_1256,nan,nan,nan 08-04_1257,nan,nan,nan 08-04_1258,nan,nan,nan 08-04_1259,nan,nan,nan