| 1 |
Large refillable pod or compact tank |
5 mL |
Approximately 2–5 days for moderate use |
Yes |
High |
Good balance between liquid reserve, battery efficiency, and pocket size. |
Usually above 2 mL limit
Not generally compliant as a tank or prefilled cartridge under TPD-style rules. |
Authorization required
No general federal tank-capacity ceiling, but the product must comply with applicable FDA requirements. |
Rules differ by country. China’s national standard limits the liquid-storage container of an e-cigarette to 2 mL. |
| 2 |
Medium refillable pod system |
3 mL |
Approximately 1–3 days for moderate use |
Yes |
Very high |
More capacity than a standard regulated pod while remaining relatively compact. |
Usually above 2 mL limit
May not be lawful for a consumer tank or cartridge in the EU or UK. |
Authorization required
Federal product authorization and state-level requirements may apply. |
Capacity limits and nicotine rules vary. Confirm destination-country requirements before import or sale. |
| 3 |
Standard refillable pod system |
2 mL |
Approximately 1–2 days for moderate use |
Yes |
Very high |
Matches the maximum tank or cartridge capacity used in several regulated markets. |
Generally compatible
Subject to notification, labeling, emissions, nicotine, and child-resistance requirements. |
Authorization required
Capacity alone does not establish market legality. |
China’s GB 41700-2022 standard sets a 2 mL maximum for the e-liquid storage container. |
| 4 |
Two-millilitre prefilled pod |
2 mL |
Approximately 1–2 days for moderate use |
Usually yes |
Very high |
Simple replacement format with capacity aligned to the EU and UK tank limit. |
Authorization required
Prefilled products must meet the applicable national and state requirements. |
China permits up to 2 mL in the device’s liquid-storage container; other markets may use different rules. |
| 5 |
High-capacity refillable pod with external bottle |
4 mL |
Approximately 2–4 days for moderate use |
Yes |
High |
Reduces refill frequency when local rules permit larger reservoirs. |
Usually above 2 mL limit
Not generally suitable for sale as a consumer tank in the EU or UK. |
Authorization required
Check federal authorization and state or local restrictions. |
Canada sets a federal nicotine-concentration limit of 20 mg/mL but does not use the EU’s 2 mL tank rule; other limits may apply. |
| 6 |
Compact refillable tank |
6 mL |
Approximately 3–6 days for moderate use |
Yes |
Medium |
Longer refill interval and generally better suited to extended travel where permitted. |
Usually above 2 mL limit
Not generally compliant with EU or UK consumer tank-capacity rules. |
Authorization required
Product legality depends on authorization and other regulatory controls. |
Australia restricts nicotine supply through prescription and import controls; state and territory rules also differ. |
| 7 |
Large refillable tank |
8 mL |
Approximately 4–8 days for moderate use |
Yes |
Medium |
High liquid reserve for stationary use, travel with supplies, or frequent users where legal. |
Usually above 2 mL limit
Not generally permitted as a consumer tank under EU or UK rules. |
Authorization required
There is no simple capacity-only test for US market legality. |
Some markets regulate device capacity, nicotine concentration, flavors, or import channels separately. |
| 8 |
Multi-day refillable reservoir |
10 mL |
Approximately 5–10 days for moderate use |
Yes |
Low to medium |
Minimizes refilling but increases device size and the importance of leak-resistant design. |
Not a permitted tank size
EU and UK rules allow refill containers up to 10 mL, not a 10 mL consumer tank. |
Authorization required
Confirm product authorization, labeling, and state requirements. |
China allows refill liquid containers up to 10 mL under its national standard, while the device reservoir remains limited to 2 mL. |
| 9 |
Extended-capacity refillable system |
15 mL |
Approximately 7–15 days for moderate use |
Yes |
Low |
Designed for low refill frequency rather than maximum portability. |
Generally not compliant
Exceeds EU and UK consumer tank limits and should not be treated as a standard market-ready format there. |
Authorization required
Review federal, state, and local requirements before commercial distribution. |
Import, nicotine, flavor, and product-registration rules can make this format unavailable in many markets. |
| 10 |
Extra-large refillable system |
20 mL |
Approximately 10–20 days for moderate use |
Yes |
Low |
Highest liquid capacity in this comparison, but typically the least portable and most restricted format. |
Generally not compliant
Far above the EU and UK 2 mL tank or cartridge limit. |
Authorization required
No capacity-only approval should be assumed for commercial sale. |
Many Asia-Pacific markets impose additional restrictions on nicotine, importation, device capacity, or retail sale. |
Home
Disposable Vape
