A cfm of 75 is the minimum number to make a fan efficient.
													
																	Ceiling fan airflow rating. 
									
	
		
	
																	Airflow efficiency is the cfm divided by the watts amount of energy used to run the fan at its highest speed. 
																	Best is over 6 000. 
																	The amount of airflow a ceiling fan can produce per minute is most commonly measured in cubic feet per minute or cfm. 
																	See what gives a fan power airflow efficiency and why. 
															
													
									
	
		
	
																	The best fans have an airflow of 3 000 cfm or above. 
																	Airflow rating or flow rate is the most effective way to measure the efficiency of a ceiling fan. 
																	Airflow is one of the biggest factors to consider when choosing a ceiling fan. 
																	But what cfm is best. 
															
													
									
	
		
	
																	This is the main point of this article which i explain in more detail further on. 
																	Cfm measuring airflow efficiency. 
																	Good cfm ranges from 4 000 to 5 000. 
																	Cfm is the most common form of measurement when speaking about ventilation heating. 
															
													
									
	
		
	
																	What is a dc motor ceiling fan and what are its benefits. 
																	Shop most reviewed ceiling fans. 
																	This makes it easy to compare two or more fans of similar size. 
																	Better ranges from 5 000 to 6 000. 
															
													
									
	
		
	
																	The cfm rating of the fan is the key consideration when choosing a fan as it determines the area a fan will cool and circulate. 
																	Although a higher number is desirable fans with a very high airflow rating cfms that have an average efficiency rating may in fact be the better choice.