The BANG TORNADO B40K DSK031 carries the largest reservoir in the BANG range: 40ml behind a mesh coil, run by an 850mAh 17350 cell that recharges over USB-C. The rating is 40,000 puffs, and the reserve is sized to make that believable.

Forty millilitres is the whole argument

Most 40K devices pair the rating with 20 to 28ml, which only holds if every draw is short. Forty millilitres is enough that the number survives normal draw lengths, and that is the difference a buyer can actually verify over a month of use.

It also changes how the device is bought. At this capacity you are not choosing a weekly purchase; you are choosing one unit that covers a long stretch, which is why the reservoir matters more than any single feature on the body.

The 850mAh 17350 cell

An 850mAh cell in the 17350 format is the larger of the two common sizes used in this bracket. It holds voltage better under load than a smaller cell, so the hundredth draw arrives at the same strength as the fifth.

Across 40ml you should still expect several charges, but they are spread out rather than constant, and the device reaches the end of its reservoir without being tethered to a cable.

Mesh, and a draw built for volume

The coil is mesh rather than wound wire, which heats across a wider surface and shortens the ramp-up before vapour appears. The practical effect is a full first second instead of a thin one.

Airflow is set open. This is a device for a direct, unhurried pull rather than a tight cigarette-style draw, and there is no ring to close it down if that is what you wanted.

Living with a forty-millilitre device

It is a substantial object. Forty millilitres plus an 850mAh cell give it real weight, so it sits on a desk or in a bag rather than in a pocket, and it stands upright without tipping.

Storage matters over that span. Keep it upright once the reservoir is past half, and out of hot cars and direct sun — a device that spends a month in use is exposed to whatever conditions you keep it in.

Technical specifications

Figures reflect the current product record. Puff counts are manufacturer ratings and vary with draw length and frequency.

Choosing an option

Twelve named entries plus a random pick. The list leans on iced fruit, berries and a couple of drink directions, which is what this part of the range sells most of.

For a first order, two iced fruit, one berry, one citrus and one mint gives a spread that reads as a range rather than a set of guesses.

Who it is for

It suits someone who uses one device steadily and wants the reserve to outlast the habit of replacing it. The open draw and the sheer volume of supply make it a poor fit for a pocket, and a good one for a desk or a bag.

If you already know that forty millilitres is more than you will finish, the 36ml models below it cost less and behave almost identically for the first month.

Available options

watermelon · strawberry watermelon · strawberry kiwi · blueberry raspberry · blueberry grapeS · energy drink · double apple · mango peach · blueberry lemon · peach ice · love66 · triple berry · Random option (fast delivery)

Option availability is confirmed at checkout; the random option suits a mixed restock.

Buying and delivery

UseeVape supplies the BANG TORNADO B40K DSK031 in single units and in bulk, with wholesale pricing applied as the quantity rises. Orders typically start at around ten units; the price that currently applies to your quantity is shown on the product page rather than fixed here, so it stays accurate when pricing moves.

Stock is held across European and overseas warehouses, and the dispatch location depends on live availability at the time of the order, so no specific country warehouse is promised in advance. Confirming the quantity and the option mix together is the quickest route to a dispatch date.

Questions buyers ask

Is 40ml the largest reservoir in the BANG range?
At this rating, yes. The 36ml models sit just below it and finish noticeably sooner.

Does it have a screen?
No. There is no display, so the draw itself is the signal that a charge is due.

Is the airflow adjustable?
No, it is fixed in an open setting for direct-to-lung use.

How many charges across the life of the device?
Several. The 850mAh cell is large for the bracket but 40ml is a long run.