Is there a pizza oven that does not require hood system?

Yes, there are pizza ovens that do not require a hood system. These ovens are typically referred to as ventless pizza ovens. They use a variety of technologies to control smoke and grease emissions, so they do not require the installation of a traditional hood system. Some ventless pizza ovens use a filtration system to capture and remove smoke and grease particles, while others use a catalytic converter to convert these emissions into harmless gases. Ventless pizza ovens are a convenient and cost-effective option for many restaurants and pizzerias that do not have the space or resources to install a traditional hood system.