Next Level Preservation Introducing Airgone®, a pressurized Argon gas can. Argon is a non-reactive, odorless, tasteless, food-safe gas heavier than oxygen. With just a 2-second flush of Airgone® (good for 75 flushes), you can prevent freshness degradation by creating a barrier between your stored goods and excess oxygen. Displaced Oxygen is released through the degassing valve of the Fresh-Port® products, in addition to naturally releasing CO2 buildup. Airgone® creates an oxygen-free environment for coffee storage and weed storage and is compatible with all Fresh-Port® products, including the Fresh-Port® Wide Mouth Mason Jar Lid and the Fresh-Port® Inner Plunger Lid. A quick note when using Airgone®! There is a wear-in period when using Airgone® with the patented Fresh-Port® Valve. Some customers may experience some resistance when inserting the red Airgone straw, and this is entirely normal! These lids were designed with narrow valves to ensure no sneaky leaks or oxygen exchange could harm your product. For optimal results when using Airgone®, keep the red straw detached from the Airgone® can when inserting it into the Fresh-Port® valve. Hold the red straw close to the end being inserted and apply gentle pressure until the straw can stand alone. Then, attach the Airgone® can to the opposite end and administer a 2-second flush to displace oxygen. Once worn in, customers should have no trouble using Airgone® to keep their products fresh. If you would like to speed up the wear-in process, take a paperclip and poke the blunt end through the Fresh-Port® valve. This should help widen the valve slightly while maintaining the silicone seal, preventing oxygen exchange! We cannot ship AIRGONE® to PO Box addresses, Alaska, Hawaii, or internationally (excluding most Canadian provinces). All AIRGONE® products will be shipped via UPS. Airgone Safety Sheet