Vaping is the use of a regulated device that heats an e-liquid to produce an aerosol. Devices typically use a coil (heating element) and a wick saturated with e-liquid. The user inhales the aerosol produced during operation.

Most e-liquids are formulated using propylene glycol (PG), vegetable glycerin (VG), flavourings and (optionally) nicotine. For nicotine products, labelling and packaging requirements in Ireland are aligned with EU/Irish TPD rules, including required warnings where applicable.

Common categories include pod systems (compact devices using pods/cartridges), vape pens (tube-style regulated devices), and box mods (higher-power regulated devices, often paired with tanks). Device selection is typically based on inhale style (MTL/RDL/DTL) and the coil’s recommended operating range.

MTL (Mouth-to-Lung) uses a tighter draw and lower power. RDL (Restricted Direct-to-Lung) is a medium draw with higher airflow. DTL (Direct-to-Lung) typically uses higher airflow and higher power. The correct inhale style depends on coil resistance, airflow design, and e-liquid viscosity.

In Ireland (TPD-aligned framework), nicotine e-liquids are commonly supplied within a maximum nicotine concentration limit of 20 mg/ml, and nicotine e-liquid bottles are typically supplied in 10 ml formats. Capacity limits also apply to refillable pods and tanks supplied for the Irish/EU market.

Many refillable pod systems and tanks supplied for Ireland/EU follow a 2 ml capacity limitation under TPD-aligned rules. Always verify the specific product variant supplied for Ireland.

Cartridge-based systems replace the entire pod unit (often with an integrated coil). Replaceable-coil systems retain the pod housing and replace only the coil head. The two systems are not interchangeable unless the manufacturer explicitly states cross-compatibility.

As a practical mapping: MTL pods usually perform best with 50–60% VG. RDL setups often tolerate 60–70% VG depending on coil design. Higher VG generally requires larger wicking ports and adequate operating temperature; if the liquid is too thick for the coil, it can lead to dry hits.

Nicotine salts are a nicotine formulation commonly used in low-power devices. They are typically selected for MTL pod systems and moderate airflow configurations. Always choose nicotine strength appropriate to your use case and local retail compliance rules.

Use e-liquids as supplied by the manufacturer. Avoid unapproved additives or mixing unknown substances into finished liquids. If you mix DIY e-liquids, use ingredients intended for vaping and follow manufacturer guidance for concentrates and nicotine handling.

Vaping devices use lithium-ion batteries. Safety risks increase with damaged wraps, poor-quality cells, physical damage, incorrect charging equipment, or carrying loose batteries with metal objects. Use reputable batteries, store them in cases, and follow manufacturer instructions. Regulated devices add protections, but correct handling remains essential.

Policies vary by venue and workplace. Many indoor environments apply smoke-free style rules to vaping. Follow site signage and venue policy, and use vaping devices responsibly around others.

Batteries and electronic devices should be handled through appropriate WEEE/e-waste routes. Do not dispose of lithium batteries in household waste. Where available, use local battery and electronics recycling collection points.