diff --git a/bme280_float.py b/bme280_float.py
index ab3f613..951e283 100644
--- a/bme280_float.py
+++ b/bme280_float.py
@@ -201,7 +201,10 @@ class BME280:
              (self.dig_H2 / 65536.0 * (1.0 + self.dig_H6 / 67108864.0 * h *
                                        (1.0 + self.dig_H3 / 67108864.0 * h))))
         humidity = h * (1.0 - self.dig_H1 * h / 524288.0)
-        # humidity = max(0, min(100, humidity))
+        if (humidity < 0):
+            humidity = 0
+        if (humidity > 100):
+            humidity = 100.0
 
         if result:
             result[0] = temp
diff --git a/bme280_int.py b/bme280_int.py
index f98dbbd..84d33de 100644
--- a/bme280_int.py
+++ b/bme280_int.py
@@ -207,6 +207,10 @@ class BME280:
         h = 0 if h < 0 else h
         h = 419430400 if h > 419430400 else h
         humidity = h >> 12
+        if humidity < 0:
+            humidity = 0
+        if humidity > 100 * 1024:
+            humidity = 100 * 1024
 
         if result:
             result[0] = temp