Lost Mary

What the series letters mean

The naming is more informative than it looks once you know the pattern. The letters denote a family with a shared body design and draw character, and the number denotes rated capacity within that family.

The BM600 at $14.99 is the compact entry point and the smallest device in the range by a wide margin. The OS and MO series at $22.99 sit in the middle at similar capacities with different body shapes. The MT15000 at $27.99 and MO20000 at $29.99 cover the high capacity end.

That structure means you can move up in capacity while staying with a body shape and draw you already like, which is the practical benefit of organising a range this way rather than replacing one model with a bigger one each year.

The BM600 and the case for a small device

At $14.99 the BM600 is the cheapest device in our entire disposable range, and it is worth understanding why that is not simply a lesser product.

Small devices suit occasional vapers, and buying a large device for occasional use is not good value no matter how the cost per millilitre works out. A high capacity device only represents value if you finish it while it still tastes good, and flavour declines as the coil ages regardless of how much liquid remains.

It is also the sensible thing to keep in a bag as a backup, or to try a flavour before committing to a larger device in the same profile. Plenty of people who use a refillable setup daily keep one of these in reserve for the days when charging was forgotten.

The MT15000 and MO20000

These are the high capacity devices, at $27.99 and $29.99. Both are rechargeable, which at this capacity is a necessity rather than a feature: a battery large enough to vaporise that much liquid in one charge would make the device impractically large.

Recharging buys you the remaining liquid. It does not extend the coil and it does not make the device refillable, which is the most persistent misunderstanding about the whole category. When the taste turns harsh, the wick has failed.

The honest trade at this end of the range is that the coil has to survive as long as the liquid, and in a twenty thousand puff device that is a long time. Expect flavour to decline gradually across the life of the device rather than staying constant to the end.

The Canadian Lost Mary range compared

Five devices across a wide price ladder, with prices as listed.

The two at $22.99 differ mainly in shape and draw rather than in specification, so that choice is a matter of preference. Our disposable vape life calculator estimates how long each would last you from your own consumption rather than from a laboratory figure.

Reading the numbers honestly

The numbers in the names are rated puff counts, produced by a testing machine drawing a consistent two to three second puff under the conditions described in ISO 20768, the vaping machine standard. A human draw is longer and far more variable.

Roughly half the rated figure is the honest expectation in normal use. A device rated at 20,000 is not going to deliver 20,000 human puffs, and no reputable retailer will tell you otherwise.

What the numbers do tell you reliably is ranking within the brand, because the same test was applied to each device. Liquid volume in millilitres is always the more honest comparison where a manufacturer states it.

Design, and whether it matters

Lost Mary devices are noticeably more shaped than the rectangular slabs that dominate the category, with rounded bodies and softer finishes. Whether that is worth anything is personal, but there is one genuine practical consequence.

A rounded device sits differently in a pocket and is less prone to being pressed against other objects in a bag, which matters because a draw activated device can be triggered by pressure on the airflow path. Devices that fire in a bag waste liquid and battery.

The finishes also show wear differently. A soft touch coating picks up marks faster than a hard plastic one, which is cosmetic rather than functional but worth knowing if the device is going to live in a pocket with keys. A small fabric case, of the kind in our accessories range, solves both problems at once.

Flavour life across a device

Flavour declines gradually as the coil ages, so the last quarter of any disposable tastes duller than the first. In the high capacity models that decline is spread over a longer period and is therefore more noticeable when you reach the end.

Separately, vaping one flavour continuously dulls your sensitivity to it, an adaptation that has nothing to do with the hardware. People regularly mistake this for a failing device. Switching to a different family for a day usually restores it entirely.

Iced profiles hold up better than sweet ones over a long device life, because the cooling agents mask the gradual decline of a tiring coil. Our roundup of best vape flavours in Canada is a good place to find a contrast, and ice pods versus regular pods explains the cooling.

Getting the most from a Lost Mary device

Draw slowly and gently rather than hard. A sharp pull floods the coil, wastes liquid as condensation and makes the device gurgle. Leave a few seconds between draws so the wick can reabsorb, since chain vaping is the fastest route to a burnt taste with liquid still remaining.

Charge before it is completely flat rather than running it down each time, since the coil performs poorly at low voltage. Keep it upright and out of heat, and out of deep cold, which temporarily reduces usable battery capacity so a healthy device reads as dead outdoors in a Canadian winter. We explain that in vaping in cold weather.

Recycle finished devices at a battery drop off point rather than in household waste. Every disposable contains a lithium cell, and lithium in general rubbish is a real and growing cause of fires in Canadian collection vehicles and sorting facilities.

Common problems and what they mean

A burnt taste with liquid still visible means the wick can no longer keep up with the coil. That is the end of the useful life rather than a charging problem, and it cannot be reversed because the cotton is carbonised.

No vapour and no light means flat on a rechargeable device or finished on a non rechargeable one such as the BM600. On the rechargeable models, try a different cable before concluding anything, since cables fail at the connector far more often than devices do.

Gurgling means the coil is flooded, usually from draws that are too hard or from the device having been carried on its side. Stand it upright for a few minutes. Our walkthrough at disposable vape troubleshooting covers the rest in order of likelihood.

How Lost Mary compares with other brands we stock

Against Elf Bar, its closest relative, the two compete directly. Elf Bar is the more conventional shape and offers a refillable route through the Elfa Pro, which Lost Mary does not. Lost Mary offers the wider price ladder, including the cheapest device we sell.

Against Geek Bar, which leans on screens and switchable modes, Lost Mary is the simpler proposition: pick a capacity and use it.

Against the Canadian brands such as Vice, Allo and Flavour Beast, the trade is international range against Canadian formulated flavours and, in some cases, a bottled liquid route. If running cost is the priority, a refillable setup from our vape kits range beats every disposable brand here.

Canadian availability and the rules that apply

Every Lost Mary product we list sits at or under the federal 20 mg/mL nicotine cap set out in Tobacco and Vaping Products Act. That is why Canadian versions are not directly comparable to the same model sold in markets with a higher ceiling, which is worth knowing if you are reading international reviews.

Flavour availability is decided provincially rather than federally, so the range differs by province and we track the current picture in vaping laws by province. As with any globally sold brand, much of the online review material describes versions formulated for markets with a higher nicotine ceiling, which Canadian units are not.

We operate an age gate on every visit and ship only inside Canada in Canadian dollars. Carriers, timings and tracking are on our shipping and delivery page and faults on our returns policy page. Anything containing a lithium cell travels in cabin baggage rather than checked luggage when flying, as Transport Canada lithium battery rules requires, and our guide to taking a vape on a plane covers the rest.

Common questions

What do the letters in Lost Mary names mean?

They denote a family with a shared body design and draw character, while the number is the rated capacity within that family. That lets you move up in capacity while staying with a shape and draw you already like.

Which Lost Mary is the cheapest?

The BM600 at $14.99, which is also the cheapest disposable we sell. It is the compact entry point, and it suits occasional use, keeping as a backup, or trying a flavour before buying a larger device in the same profile.

Do the numbers mean real puff counts?

They are laboratory figures from a machine drawing a consistent two to three second puff. Human draws are longer and more variable, so roughly half is the honest expectation. The numbers rank devices within the brand reliably but compare poorly across brands.

What is the difference between the OS5000 and the MO5000?

Body shape and draw character rather than specification. Both are $22.99 and sit at similar capacities, so the choice between them is a matter of which feels better in the hand and which flavours you prefer.

Are Lost Mary devices rechargeable?

The higher capacity models are, because a battery large enough to vaporise all that liquid in one charge would make the device impractically large. The BM600 generally is not. Recharging lets you finish the liquid already sealed inside, nothing more.

Why does my device sometimes fire in my bag?

Draw activated devices can be triggered by pressure on the airflow path from other objects. The rounded bodies in this range are less prone to it than rectangular devices, but carrying one in a separate pocket or a small case removes the problem entirely.