Yocan Green Personal Air Filter Pinecone

You breathe out into it rather than into the room. Inside is a four-stage HEPA filter combined with activated coconut carbon, which is the part that handles odour rather than just particles. The shell is soft silicone, so it sits comfortably against your mouth, and the filter cartridge itself is biodegradable. There is nothing to set up or switch on, and it works with anything you happen to be smoking or vaping. Replace the cartridge once exhaled air starts carrying scent again.