DynaVap is a USA based vaporizer manufacturing establishment. DynaVap builds smokeless and battery-less portable vaporizers or as some refer to as one hitters. Also, they design and manufacture all their vaporizers in-house in the USA. The Shadow M and The M are their most popular vaporizers. And not to mention if you are a fan of colorful vaporizers then you would love their Omni vaporizers which comes in various sizes and colors.