1. U.S. Food and Drug Administration. (2026). "E-Cigarettes, Vapes, and Other Electronic Nicotine Delivery Systems." — fda.gov
2. Centers for Disease Control and Prevention. (2026). "About E-Cigarettes (Vapes)." — cdc.gov
3. Pushalkar, S., et al. (2017). "Electronic Cigarette Aerosol Modulates the Oral Microbiome and Increases Risk of Infection." mBio, 8(1). — journals.asm.org
4. Queensland Health. (2024). "Dry Mouth: Causes and Self-Care." — health.qld.gov.au
5. Royal Vapery. (2026). "How to Clean Vape Pods Safely: Step-by-Step Guide." — royalvapery.co.uk
6. Vape Observation. (2026). "How to Clean a Vape: Tank, Pod & Device." — vapeobservation.com
7. Vapage. (2026). "Coil Care and Replacement: Making Coils Last Twice as Long." — vapage.com
8. Vape Lounge Online. (2026). "When to Change Your Vape Coil: 7 Warning Signs." — vapeloungeonline.co.uk