diff --git a/esphome/components/cm1106/cm1106.cpp b/esphome/components/cm1106/cm1106.cpp
index 428be76c48..a6e1d593bf 100644
--- a/esphome/components/cm1106/cm1106.cpp
+++ b/esphome/components/cm1106/cm1106.cpp
@@ -6,6 +6,8 @@
 namespace esphome {
 namespace cm1106 {
 
+static const char *const TAG = "cm1106";
+
 uint8_t cm1106_checksum(const uint8_t *response, size_t len) {
   uint8_t crc = 0;
   for (int i = 0; i < len - 1; i++) {
@@ -16,7 +18,8 @@ uint8_t cm1106_checksum(const uint8_t *response, size_t len) {
 
 void CM1106Component::update() {
   uint8_t response[8] = {0};
-  if (!this->cm1106_write_command_(c_m1106_cmd_get_c_o2_, sizeof(c_m1106_cmd_get_c_o2_), response, sizeof(response))) {
+  if (!this->cm1106_write_command_(this->c_m1106_cmd_get_co2_, sizeof(this->c_m1106_cmd_get_co2_), response,
+                                   sizeof(response))) {
     ESP_LOGW(TAG, "Reading data from CM1106 failed!");
     this->status_set_warning();
     return;
@@ -46,7 +49,7 @@ void CM1106Component::update() {
 
 void CM1106Component::calibrate_zero(uint16_t ppm) {
   uint8_t cmd[6];
-  memcpy(cmd, c_m1106_cmd_set_c_o2_calib_, sizeof(cmd));
+  memcpy(cmd, this->c_m1106_cmd_set_co2_calib_, sizeof(cmd));
   cmd[3] = ppm >> 8;
   cmd[4] = ppm & 0xFF;
   uint8_t response[4] = {0};
@@ -58,7 +61,7 @@ void CM1106Component::calibrate_zero(uint16_t ppm) {
   }
 
   // check if correct response received
-  if (memcmp(response, c_m1106_cmd_set_c_o2_calib_response_, sizeof(response)) != 0) {
+  if (memcmp(response, this->c_m1106_cmd_set_co2_calib_response_, sizeof(response)) != 0) {
     ESP_LOGW(TAG, "Got wrong UART response from CM1106: %02X %02X %02X %02X", response[0], response[1], response[2],
              response[3]);
     this->status_set_warning();
diff --git a/esphome/components/cm1106/cm1106.h b/esphome/components/cm1106/cm1106.h
index 1252627d60..bf4e6b2eca 100644
--- a/esphome/components/cm1106/cm1106.h
+++ b/esphome/components/cm1106/cm1106.h
@@ -8,8 +8,6 @@
 namespace esphome {
 namespace cm1106 {
 
-static const char *const TAG = "cm1106";
-
 class CM1106Component : public PollingComponent, public uart::UARTDevice {
  public:
   float get_setup_priority() const override { return esphome::setup_priority::DATA; }
@@ -19,17 +17,16 @@ class CM1106Component : public PollingComponent, public uart::UARTDevice {
 
   void calibrate_zero(uint16_t ppm);
 
-  void set_co2_sensor(sensor::Sensor *co2_sensor) { co2_sensor_ = co2_sensor; }
-
- private:
-  uint8_t c_m1106_cmd_get_c_o2_[4] = {0x11, 0x01, 0x01, 0xED};
-  uint8_t c_m1106_cmd_set_c_o2_calib_[6] = {0x11, 0x03, 0x03, 0x00, 0x00, 0x00};
-  uint8_t c_m1106_cmd_set_c_o2_calib_response_[4] = {0x16, 0x01, 0x03, 0xE6};
+  void set_co2_sensor(sensor::Sensor *co2_sensor) { this->co2_sensor_ = co2_sensor; }
 
  protected:
-  bool cm1106_write_command_(uint8_t *command, size_t command_len, uint8_t *response, size_t response_len);
+  uint8_t c_m1106_cmd_get_co2_[4] = {0x11, 0x01, 0x01, 0xED};
+  uint8_t c_m1106_cmd_set_co2_calib_[6] = {0x11, 0x03, 0x03, 0x00, 0x00, 0x00};
+  uint8_t c_m1106_cmd_set_co2_calib_response_[4] = {0x16, 0x01, 0x03, 0xE6};
 
   sensor::Sensor *co2_sensor_{nullptr};
+
+  bool cm1106_write_command_(uint8_t *command, size_t command_len, uint8_t *response, size_t response_len);
 };
 
 template<typename... Ts> class CM1106CalibrateZeroAction : public Action<Ts...> {