All you have to do to make it airtight is SCREW THE ORANGE PART onto the black part with some elbow grease. Like it doesn't feel like a perfect fit because it's clearly not real. BUT, if you just make sure you actually screw/put that suction pack onto that heating chamber, it will work. Shipping was quick, it came with blue rings, a brush, lots of good screens and a decent metal interior. The stainless steel part is not solid when you first get it, so be careful. But after you heat it up a few…