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mark on the bottom of the box

I just want to add that using a laser particle counter to "sanity-check" claims made by air filter manufacturers was very important in my case to identify a good HEPA unit

HEALTH & SAFETY WARNING SMOKING ANY SUBSTANCE POSES HEALTH RISKS - Not for use by individuals under 18, pregnant/nursing persons, or anyone with respiratory conditions - Smoking introduces particulate matter and combustion byproducts to the lungs - Discontinue immediately if adverse reactions occur - Consult healthcare provider before use, especially if taking medications - Some herbs may interact with prescription drugs (white sage, mugwort, peppermint) - For educational purposes only - not medical advice - Products not evaluated by FDA and not intended to treat, cure, or prevent disease - Use only herbs specifically sold for smoking/consumption - never craft or potpourri grade - Verify legal status in your jurisdiction before purchase or use By using these recipes, you acknowledge understanding these risks and agree to use herbs responsibly at your own discretion.

made or derived from tobacco