diff --git a/src/main.cpp b/src/main.cpp
index d401d6a..f3ab35d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -143,6 +143,10 @@ void poweroffDevices() {
     uv.shutdown(true);
 
   }
+
+  //if (sensors_active.sds) {
+  //  sds.sleep();  // use custom working period instead
+  //}
 }
 
 
@@ -820,7 +824,7 @@ void setup()
     if (sds_fw.isOk()) {
       sensors_active.sds = true;
 
-      sds.setActiveReportingMode();  // ensures sensor is in 'active' reporting mode
+      sds.setQueryReportingMode();  // ensures sensor is in 'query' reporting mode
       sds.setCustomWorkingPeriod(5); // sensor sends data every 3 minutes
     } else {
       ESP_LOGW(TAG, "Failed to communicate with SDS011 sensor, check wiring?");