You really need to use your exhaust hood when you're cooking. Gas stoves can emit pollutants that can get to very high levels like nitrogen dioxide and carbon monoxide, but no matter what type of stove you have, venting is important. With homes becoming more and more energy efficient, if you build a really tight kitchen with no air leakage, you need to ensure you've got proper make-up air exhaust so your kitchen hood is working properly and safely. In this video, Matt Risinger goes over a simple but very effective way to ensure your kitchen exhaust hood will function as rated and is installed properly. Links to some of the items in video, as well as a couple of related stories, below Make Up Air Damper 8" https://amzn.to/2F2sXXi (size this based on your exhaust CFM). Make Up Air Damper 6" (includes Pressure Sensor) https://amzn.to/2Iyd1wX.Filter Kit for in-line on the duct https://amzn.to/31sn7YQ .Inserts https://amzn.to/2MFTb8i.Conventional make up air kit https://www.youtube.com/redirect?q=http%3A%2F%2Fdocs.zephyronline.com%2Fdocs%2Fspecs%2Fmua_spec.pdfredir_token=xbs5p8yEUpGlUrDy1KLGomDP-Ix8MTU2MzkwMjM3OEAxNTYzODE1OTc4&v=Gyph72_y8wqevent=video_descriptionNYT on gas stoves https://www.nytimes.com/2019/05/01/opinion/climate-change-gas-electricity.htmlStanford Medicine on why you should use your exhaust fan https://scopeblog.stanford.edu/2018/03/06/use-your-range-hood-for-a-healthier-home-advises-indoor-air-quality-researcher