diff --git a/src/Libs/Model.php b/src/Libs/Model.php
index fefef4d..8e59f55 100644
--- a/src/Libs/Model.php
+++ b/src/Libs/Model.php
@@ -380,6 +380,17 @@ class Model {
         return new static();
     }
 
+    /**
+     * Elimina los caracteres que no son alfanuméricos o _.
+     *
+     * @param string $string
+     *
+     * @return string
+     */
+    private static function cleanString(string $string) :string {
+        return preg_replace('/[^A-Za-z0-9_]/', '', $string);
+    }
+
     /**
      * Define el WHERE en la sentencia SQL.
      *
@@ -407,8 +418,9 @@ class Model {
         if ($no_filter) {
             static::$querySelect['where']   = "$column$operatorOrValue$value";
         } else {
-            static::$queryVars[":where_$column"] = $value;
-            static::$querySelect['where']   = "$column$operatorOrValue:where_$column";
+            $cleanColum = static::cleanString($column);
+            static::$queryVars[":where_$cleanColum"] = $value;
+            static::$querySelect['where']   = "$column$operatorOrValue:where_$cleanColum";
         }
 
         return new static();
@@ -554,8 +566,9 @@ class Model {
         if ($no_filter)
             static::$querySelect['AndOr'] .= " AND $column$operatorOrValue$value";
         else {
-            static::$queryVars[":and_$column"] = $value;
-            static::$querySelect['AndOr'] .= " AND $column$operatorOrValue:and_$column";
+            $cleanColum = static::cleanString($column);
+            static::$queryVars[":and_$cleanColum"] = $value;
+            static::$querySelect['AndOr'] .= " AND $column$operatorOrValue:and_$cleanColum";
         }
 
         return new static();
@@ -588,8 +601,9 @@ class Model {
         if ($no_filter)
             static::$querySelect['AndOr'] .= " OR $column$operatorOrValue$value";
         else {
-            static::$queryVars[":or_$column"] = $value;
-            static::$querySelect['AndOr'] .= " OR $column$operatorOrValue:or_$column";
+            $cleanColum = static::cleanString($column);
+            static::$queryVars[":or_$cleanColum"] = $value;
+            static::$querySelect['AndOr'] .= " OR $column$operatorOrValue:or_$cleanColum";
         }
 
         return new static();