For general effectiveness, multiply your kitchen's volume (Width x Depth x Height) by 10 to find the minimum extraction rate needed per hour. Which Cooker Hood? Buying Guide - Bosch
Because they face cross-drafts, they should always be wider than the cooktop (extend 3–6" beyond the range). 3. Calculate Required Power (CFM) Power is measured in CFM (Cubic Feet per Minute) or buy kitchen hood
These vents pull air outside through a pipe. They are the most effective at removing heat and moisture. You need roughly 100 CFM for every 10,000
You need roughly 100 CFM for every 10,000 BTUs of your stove's total output. For general effectiveness
Experts often recommend going 3 inches wider on each side (e.g., a 36" hood for a 30" stove) for better coverage.
These use charcoal filters to clean the air before blowing it back into the kitchen. They are easier to install but less effective at removing heat and steam. 2. Determine the Right Size