It has always occurred to me that, if you can, you should always just put 140mm fans in that spot, because they are larger and can therefore spin slower to achieve the same cooling as a 120mm but more quietly, but could also spin faster for even more cooling.

For continuous indoor air quality ventilation, a heat or energy recovery ventilator (HRV or ERV) should provide 0.35 air changes per hour….Heat and energy recovery ventilators. Total area of home (square feet) Continuous ventilation rate 1,000 square feet 50 CFM 2,000 square feet 100 CFM 3,000 square feet 150 CFM

A higher CFM is always better for your kitchen fan. You can always run a high CFM hood on lower settings. It provides great ventilation by moving a heavy amount of air per minute.

For case airflow fans, 50+ CFM for 120mm fan and 70+ CFM for 140mm fan is good.

The rule of thumb is that you need at least 1 CFM per square foot of room area. To determine the square footage of your bathroom, multiply the length times the width. For example, if your bathroom is 6 feet wide and 9 feet long, its square footage is 54. . . . Read more

Noctua NF-S12B redux-1200. Best Overall PC Fan. … Arctic F12-120. Best Budget Fan. … Cooler Master MF200R ARGB. Best 200mm PC Fan. … be quiet! Silent Wings 3. … Corsair QL Series QL120. Best RGB PC Fan. … Cooler Master MasterFan MF120 Halo. Best Addressable RGB PC Fan. … Phanteks . . . Read more

Best PC fans Noctua NF-S12B redux-1200. The best PC fan in 2022. … Corsair LL120 RGB. The top fan for RGB builds. … Cooler Master MF120R A-RGB. RGB fans on a budget. … Thermaltake Toughfan 12 Turbo. The best fans for radiators and cramped cases. … Noctua NF-A12x25 PWM. … . . . Read more

CFM is how many cubic feet of air the range hood exhausts every minute at full speed. Simply put, the higher the CFM, the more air the hood vents out of your kitchen. To power your range hood, you need at least 100 CFM for every 10,000 BTUs of your . . . Read more

Let’s first discuss some of the main specifications and factors to consider when choosing aftermarket case fans for your rig. 3-pin versus 4-pin (PWM) … Fan Speed. … Fan Size. … Fan Noise. … CFM. … Static Pressure. … Power Draw. … Aesthetics.

The bigger the bathroom, the higher the CFM rating you’ll need. A fan should have a CFM rating high enough to replace the air in your bathroom at a rate of eight times per hour.