To capture all fumes, your hood must be at least as wide as your cooktop. A 30" cooktop needs at least a 30" hood.
Experts often recommend going 3 inches wider on each side (e.g., a 36" hood for a 30" stove) for better coverage. buy kitchen hood
These vents pull air outside through a pipe. They are the most effective at removing heat and moisture. To capture all fumes, your hood must be