OK, so I am completely ignorant about vaporizers. But my friend just got one and he's regretting his purchase so I'm going to buy it from him. It's brand new, still in the box and everything. He said it also comes with a scale, grinder and 5 free screens. So here's my question. Are the screens like the screens you use for a bowl? Are they necessary or are they just good to have? How long does a screen usually last?

Thanks in advance.
420marijuana420 Reviewed by 420marijuana420 on . Vaporizer screens OK, so I am completely ignorant about vaporizers. But my friend just got one and he's regretting his purchase so I'm going to buy it from him. It's brand new, still in the box and everything. He said it also comes with a scale, grinder and 5 free screens. So here's my question. Are the screens like the screens you use for a bowl? Are they necessary or are they just good to have? How long does a screen usually last? Thanks in advance. Rating: 5