If you’ve been browsing through new disposable vapes lately, you’ve likely seen a new number appearing everywhere: 35k. Within the Lost Mary collection, that number is “up to 35,000 puffs,” and it’s the name for two of the brand’s most highly-anticipated drops: MT35000 Turbo (also referred to as MT35K) and Ultrasonic 35K. If you’re stepping up from a smaller disposable, replacing a beat-up daily driver, or simply giving Lost Mary a first try, this review breaks down what 35k is, the difference between the two devices, who each is ideal for, and how to pick confidently.

Note : This material is for use by adults only (21+ in the US). Nicotine is a chemical addiction. Do not use nicotine unless you are a current user.

What “35k” Really Is

The 35k rating is the factory’s best puff estimate under particular conditions. Your own puff number depends on how you vape your draw length, power mode chosen, and even temperature. Within the 35k series, one device is all about ultra-smooth, constant puffs with two power modes, and the other uses a heat-free ultrasonic atomization and has its own power levels. If you vape more slowly or prefer a warmer, more dense hit, expect the puff number to go down compared to short, light draws. Use 35k as a ceiling, not a promise helpful for comparing devices within the same class.

The Lost Mary 35k Family in Summary

There are two headliners in the 35k segment:

Lost Mary MT35000 Turbo (MT35K)

A high-performance disposable with a big battery, double mesh coil, and two power settings (long life and performance). It even features a discreet/”blend-in” display so you can monitor battery and e-liquid without raucous, flashy graphics.

Lost Mary Ultrasonic 35K

A fresh approach to disposables that atomizes e-liquid without using conventional heat components. Instead, ultrasonic vibration vaporizes e-liquid, with contemporary quality-of-life features such as high-speed recharging and a flavor-adjusting dial on the majority of store models.

Both are pre-filled and USB-C rechargeable for easy, mess-free use. The differences lie in the atomization tech, battery power, physical size, and user adjustable settings which we discuss in depth below.

MT35000 Turbo (MT35K)

If you enjoyed the Lost Mary MT15000 Turbo but wanted it to last longer and pack a stronger hit, the MT35K was designed to answer. Here’s how it is unique:

Power Modes for Control

MT35K usually has two modes:

• A more robust mode for maximum puff count (to 35k).
• A Turbo/performance setting optimized for thicker, denser vapor (with a reduced estimated total puff).

This allows you to schedule output to your day. Commuting to work or on route to work? Be in efficiency mode. Need a quick break outside? Switch to the more intense, heavier hit.

Battery and Charging

The MT35K enhances battery capacity over previous models with the addition of fast, convenient USB-C charging. The larger power tank is capable of accommodating the higher puff limit and the performance mode without constantly searching for a cord.

Coil and Consistency

A two-mesh coil design and “smooth taste” structure contribute to absolute flavor consistency from the very first refill-free hit to the last. You won’t even feel half as much of that typical drop-off towards the end of the tank that some disposables experience.

Show You Don’t Have to Show Off

One of the less-well-publicized benefits is a subtle, fade-into-the-background screen that provides you with the information you want (battery, e-liquid level) without making your vape into a billboard for all to see. It’s functional, unobtrusive, and readable at a glance.

Strength & Capacity

The MT35K is pre-filled and, at most U.S. retail outlets, 5% (50 mg/mL) nicotine. If you’re accustomed to lower-nicotine freebase or zero-nic products, this is something to take into consideration; the 35k line is designed for adult nicotine consumers who desire a more potent, salt-nic style of experience.

Flavor Profile

Availability varies from retailer to retailer, but the MT35K typically includes crowd-pleasers like Pink Lemonade+, Scary Berry+, Strawberry+, Tiger’s Blood+, and Watermelon+. Vivid, saturated profiles can be expected, designed to stay consistent well into the life of the device.

Who It’s For

Adult vapers seeking control over performance vs. longevity.

Any user who enjoys having a clear battery/e-liquid indicator on a disposable.

Those who value smoothness and reliability above cutting-edge tech.

Ultrasonic 35K

The Ultrasonic 35K is where Lost Mary holds nothing back in terms of innovation. Instead of the usual “wire heats e-liquid” system, it uses ultrasonic vibration to atomize the e-liquid into a fine mist.

Ultrasonic Atomization

By removing a traditional heat source from the mix, the Ultrasonic 35K aims to deliver smooth, uniform vapor with less chance of bitter, burnt hits. The experience is changed; most characterize it as being extremely consistent across.

Flavor-Tuning Dial & Modes

Most retail models include a flavor/strength dial and power adjustment settings, so you can dial in how relaxed or strong each hit will taste. It’s not a strict “custom curve,” but it’s a heck of a lot more control than disposables provide.

Capacity, Battery and Charging

The Ultrasonic 35K usually has a 20 mL pre-fill and 800 mAh fast recharge battery (usually 1A). What that means in practical terms is that you can quickly top up and be vaping again without needing to park alongside a socket for hours.

Nicotine Strength

Like the MT35K, American listings will typically display 5% (50 mg/mL) salt nicotine.

Who It’s For

• Adult vapers seeking a high-tech, heat-free atomization experience.
• Foodies who enjoy tailoring intensity at the time.
• Anyone interested in next-gen disposable tech in a convenient form factor.

MT35K vs Ultrasonic 35K: Which one should I buy?

Let’s break the decision into real-world questions:

1) Are you looking for known performances or something new?

If you want tried-and-tested disposable performance with double-mesh coils and two power output levels, the MT35K is the better option.

If you are in search of ultrasonic atomization and want to explore heat-free vapor generation, explore Ultrasonic 35K.

2) Would you like a built-in screen?

The MT35K’s discrete screen also facilitates effortless charging and measuring of residual e-liquid.

The Ultrasonic 35K is not about screens, it’s about atomization experience and flavor calibration.

3) What is your flavor preference?

MT35K varieties are biased toward traditional and fruit-forward, crafted to be the same taste on puff 50 and puff 5,000.

Ultrasonic 35K flavors are engineered to emphasize how rich and even ultrasonic vapor can be especially when you tweak intensity.

4) Do you want maximum longevity or for puffy clouds?

In efficiency/smooth mode, the MT35K is rated 35k puffs; in Turbo/performance mode, it is rated lower.

Ultrasonic 35K also features a 35k puff rating, with power controls that can trade run time for effectiveness.

You can’t go “wrong” either way; it’s a style thing. If you enjoy gadgets and the concept of heat-free vapor, Ultrasonic is a blast and really unique. If you prefer a hard-hitting daily with a convenient screen and two easy modes, the MT35K fills the bill.

Flavor Descriptions and Nicotine Factors

For many adult vapers, flavor is the clincher. In the world of 35k, get ready for zesty fruits and hydrating refreshers: lemonades, berries, watermelon, tropical mix-ins, and the like. The MT35K’s “+” flavors are crafted to strike a balance between sweetness and definition, so they don’t get murky after a thousand puffs.

Nicotine is the other standout performer. The majority of U.S. 35k devices are 5% salt nicotine. If you’re accustomed to low-nic freebase (i.e., 3–6 mg) or tapering, these will be too strong. If you require weaker strength, a refillable pod system where you can select your own e-liquids is the way to go. If you’re already a 5% disposable user, the 35k series will be familiar territory only with added longevity and stability.

What to Expect from “Smooth” vs. “Turbo” (and Names Like Them)

They have various names but the concept is the same:

Smooth/Normal/Eco modes favor puff count and steady delivery.

Turbo/Boost/Performance modes boost power and also vapor density, usually decreasing total puffs.

If you’re a beginner with dual-mode disposables, begin on the smoother/eco setting for a day. If you prefer the hits too light, then switch to Turbo/performance when you can recharge the device more frequently.

Real-World Puff Counts: Temper Expectations

A reality check: “Up to 35,000 puffs” is an estimate from the lab. In the real world, chain sessions, extended draws, and high-power settings all detract from your overall. That’s not a brand of idiosyncrasy, it’s physics. The better news is that both 35k versions are designed to preserve taste quality well into the life of the device, and that’s more significant than reaching a number.

Authenticity and Where to Buy

Counterfeits remain the bane of the disposable market. Just to be safe:

• Purchase from established, original vendors that clearly specify specs and nicotine levels.
• Check for tampering, unusual fonts, or fuzzy print on packages.
• Verify batch/date coding and any on-box authenticity features the company employs.
• Be wary of extremely low prices or postings with shady specs.

If you’re shopping online in the United States, anticipate adult-signature on delivery in most states and age verification at the checkout. Local laws differ, so always obey your state and city regulations.

Safety, Charging, and Care Tips

Use the supplied cable or a good quality USB-C cable and charge off a low-watt source (computer port or simple wall adapter). Avoid charging from high-watt fast-charge bricks designed for laptops unless the device specifically indicates support for higher input.

• Don’t leave charging overnight or unattended. Treat it like any other lithium-ion device.
• Place it out of direct sunlight and heat. E-liquid thickens or thins due to heat, and this impacts performance.
• The store is kept upright wherever possible, especially in hot weather, to reduce the chance of condensation or gurgling.
• Do not recharge or penetrate. These are sealed disposables.
• Recycle responsibly via e-waste or battery recycling programs when you no longer need them.

Who the Lost Mary 35k Series is Suitable For

• Standard, convenience vapers seek high capacity and rechargeability in an easy-to-use disposable.
• Flavor-first vapers who are concerned with consistency throughout the device’s lifespan.
• Tinkerers that need a bit of control (power modes, flavor dial) but don’t wish to go to a refillable tank or pod.

If you vape lightly and a smaller disposable vape already lasted you weeks, a 35k device might be more capacity than you require. If you’re replacing a few smaller vapes a month or you despise flavor drop-off, 35k begins to make a whole lot of sense.

Rapid FAQ

Q1: Is Lost Mary 35k series refillable?

Ans: No. They are pre-filled, sealed disposables. Do not try to refill or alter them.

Q2: Are they rechargeable?

Ans: Yes, both 35k devices are USB-C rechargeable. That’s how they achieve such high puff counts from one pre-fill.

Q3: Does 35k mean I will get 35,000 puffs?

Ans: No. It’s an upper-limit value under some conditions. Your actual total varies by draw length and power mode, and so on.

Q4: Which is tougher, MT35K or Ultrasonic 35K?

Ans: Both can provide satisfying vapor. The MT35K provides coil-based feel with a Turbo mode for thicker clouds. The Ultrasonic 35K focuses on heat-free atomization with smooth, reliable delivery and a flavor-adjustment dial. It’s a matter of personal taste.

Q5: What nicotine level are they available in?

Ans: Most US listings have 5% (50 mg/mL) salt nicotine. Always check the packaging.

Is there a screen?

The MT35K features a low-profile display of battery/e-liquid readings. The Ultrasonic 35K is designed to prioritize the ultrasonic experience and flavor customization over screen readings.

The Bottom Line Lost Mary 35k places you in the refillable, high-capacity disposable category tools made for longer, more reliable performance with less fuss. If you’re an adult vaper who enjoys choice and control, the MT35000 Turbo offers comfortable hardware with smart power modes and a subtle display. If you want an experience with next-generation, heat-free vapor, the Ultrasonic 35K is your device. Either device, you’re receiving a consistency-tuned, convenience-driven, long-lasting device, the three pillars that set the 35k series apart.

Remember: purchase from established U.S. retailers, comply with all local law, and responsibly recycle finished devices. If you are not already a nicotine consumer, do not begin. For adult nicotine consumers looking for a reliable, long-lasting disposable, Lost Mary’s 35k family is where you wish to be looking.