The shift in approach to create airflow eliminates these health discomforts without compromising thermal comfort. Yes! Superfan has designed a new blade shape that moved large volumes of air at an optimal speed to produce the required 230 CMM. Why sleeping under fan during heatwave harmful to your health?Īre there any fans without these heath discomforts ?.Is sleeping with a fan on bad for health?.To know more about the health discomforts caused by high speed ceiling fans, look at the links below : Sleeping directly under high speed air without ventilation throughout the night could cause your muscles to tense up and cramp, leading to muscle stiffness and tiredness in the morning due to the excess pressure. People with sinus problems may be more prone to the effects of high speed air as their body tends to produce mucus to compensate for nasal tract dryness resulting in nose blockages and headaches. Similarly, a steady stream of high speed air on the exposed parts of the body like the face could increase the rate of removal of moisture leaving your eyes and nasal tracts dry. It is well known that airflow on a surface increases the evaporation rate, this is experienced every day while we blow on a cup of tea to cool it down. when you sleep or sit under it for a longer duration.

Are there risks of high speed air from ceiling fans?Įxposure to a ceiling fan delivering high speed air and pressure could cause health discomforts like congestion, dry eyes, nasal dryness, muscle stiffness & tiredness, etc. (unless there is sufficient cross ventilation). The airflow of the ceiling fan varies with rotation speed (RPM) controlled by the speed of the fan rotation represented as Revolutions Per Minute (RPM).Īccording to fan laws, when RPM is increased by 10%, the airflow increases by 10%, and the total static pressure increases by 21%. What happens when you increase the rotation speed of the ceiling fan? These fans are commonly called high speed fans in the market with rotation speed greater than 350 RPM. Most of the ceiling fans available in the market move a smaller volume of air at higher speeds to achieve the desired 230 CMM flow. The airflow of a typical 48” ceiling fan in India is rated to be 230CMM, which is far greater than the fans used across the world. What kind of airflow is produced in typical ceiling fans? Fan designers vary the two components to make fans suitable for different applications with the same airflow. The airflow has two components, the volume of air moved and the speed at which that volume of air moves.

The airflow from ceiling fans is measured in Cubic Meter Per Minute (CMM). A ceiling fan is a simple electrical appliance with blades mounted on a motor which rotates the blades to push the air and create airflow.

High airflow ceiling fans