One so I remember that I read it already and two because its learning experience for you man. I'm a fan of learning
How To Use Progressive Web App aka PWA On 420 Magazine Forum
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Its suppose to make the plants happier like it does to humans.some research to back up veg boost during use.and it eliminates alot of smell particles. But not to use in flowering.specially the 2 last ones.ur buds will be tasteless and no dank.