This is a picture of an oven vent coming from the ceiling (but the ceiling is not pictured). There is smoke coming out of the bottom of the vent, and you can see a small tunnel up above it.
This is a Cooker Hood icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,700 icons, all in the same style and quality.