diff --git a/platformio/project/config.py b/platformio/project/config.py
index bf5870c9..c2b072ef 100644
--- a/platformio/project/config.py
+++ b/platformio/project/config.py
@@ -401,11 +401,22 @@ class ProjectConfigBase:
                 ", ".join(unknown_envs), ", ".join(known_envs)
             )
 
-        # check envs names
         for env in known_envs:
+            # check envs names
             if not self.ENVNAME_RE.match(env):
                 raise exception.InvalidEnvNameError(env)
 
+            # check simultaneous use of `monitor_raw` and `monitor_filters`
+            if self.get(f"env:{env}", "monitor_raw", False) and self.get(
+                f"env:{env}", "monitor_filters", None
+            ):
+                self.warnings.append(
+                    "The `monitor_raw` and `monitor_filters` options cannot be "
+                    f"used simultaneously for the `{env}` environment in the "
+                    "`platformio.ini` file. The `monitor_filters` option will "
+                    "be disabled to avoid conflicts."
+                )
+
         if not silent:
             for warning in self.warnings:
                 click.secho("Warning! %s" % warning, fg="yellow")