1. Equipped with a "rapid heating" function that allows you to heat by about 8% more capacity when it starts up.(Maximum about 15 minutes); 2. Equipped with "spot heating operation" which operates with a fixed heating capacity.3. Equipped with an “eco feature” function that efficiently heats by preventing the room from being overheated.(Comes with a selection switch) In addition, when it is relatively warm in early spring or early autumn, the eco feature can be used earlier to prevent overheating and enhance the eco-friendly effect.4. Equipped with a clip-type air filter that is easy to put on and take off.5. Equipped with a 24-hour residual time timer (simple timer).6. Equipped with a sleep timer that allows you to select between 15 / 30 /45 / 60 minutes.7. Includes a 3 / 5 /8 hour automatic power off feature.8. Equipped with a locking function so that it does not operate even if you accidentally push the switch.(Press the switches at the same time) 9. As an environmentally friendly product, we use lead-free solder.Reduces power consumption when on standby.(0.6 W): 10. The buzzer will notify you when you press the switch or the safety device is activated.11. For improved service maintenance.