Lost Mary Quasar OS25000 is a rechargeable disposable built for long-haul convenience, pairing an animated screen and adjustable output with a bold, dense draw in the ~$13.99–$22.99 range. It’s strongest for flavor-first adult nicotine users who want a “set it and forget it” daily carry, and weakest for anyone who needs lower nicotine options, ultra-small portability, or a super-quiet, ultra-restricted draw.
Product Overview
| Device | Overall Score | Pros | Cons | Ideal For |
|---|---|---|---|---|
| Lost Mary Quasar OS25000 | 4.2/5 | Rich flavor density, adjustable power, clear screen | Bulky for tight pockets, high-nic only, mid/high mode drains faster | Adults who want a long-lasting rechargeable disposable with tunable draw and strong flavor |
Final Verdict
The Quasar OS25000 is a flavor-forward, screen-equipped disposable that feels more “device-like” than most throwaways: the triple mesh coil keeps the vapor dense, the airflow gives you real control over draw resistance, and the power settings let you decide whether you want smooth consistency or a punchier hit. The trade-off is size, a higher-intensity nicotine experience, and noticeably shorter runtime between charges when you live in the higher modes.
- Who It’s For
- Adult nicotine users who want long-lasting disposable convenience with recharging
- Flavor-first users who like dense, saturated pulls
- People who want adjustable airflow and a stronger, more present throat hit
- Who It’s Not For
- Anyone looking for lower nicotine strengths or zero-nic options
- Minimalists who want the smallest possible pocket carry
- Users who hate screens, lights, or any “gadgety” feel

How We Tested It
We ran the Quasar OS25000 through daily-rotation use across commutes, desk breaks, and late-night sessions, scoring Flavor, Throat Hit, Vapor Production, Airflow/Draw, Battery Life, Leak Resistance, Build Quality, Ease of Use, and Portability. We tested each power setting and multiple airflow positions, then repeated checks after several recharge cycles to see whether output or flavor fell off. Vape and nicotine products are for adults only; use is not recommended for minors, pregnant people, or people who don’t use nicotine, and all experience notes are subjective and not medical advice.
Our Testing Experience
I started the week using it like a normal carry—short pulls on breaks, longer pulls at night—then pushed it harder once Marcus got his hands on it. The first thing that landed was mouthfeel: a rounded, saturated vapor texture that stayed “thick” without turning scratchy, especially on the mid setting with airflow half-open. On higher output, the flavor pops faster but the throat hit tightens up and the device feels hungrier between charges. Jamal kept it in-and-out of a jacket pocket all day and mostly lived on the lower setting; his notes stayed consistent: easy grab-and-go, predictable draw, and a clean mouthpiece feel as long as he wiped condensation once a day. In our logs, the device lined up with real-world expectations—roughly ~20k-range total usage before the last stretch felt flatter, and a typical full recharge landing around the 70–95 minute window depending on how depleted it was.
- What we liked
- Dense, accurate flavor with a smooth, “coated” palate feel
- Airflow control that actually changes draw character
- Screen makes it easy to pace battery and e-juice
- Who it is best for
- Adults who want a long-lasting rechargeable disposable as a main device
- Users who like a slightly open MTL to loose MTL draw
- People who prefer stronger nicotine impact
- Where it falls short
- Bigger body than simpler disposables
- High mode shortens time between charges
- Not the best pick for ultra-tight MTL fans

Pros & Cons
| Pros | Cons |
|---|---|
| Strong flavor density, especially mid/high | Large for slim pockets |
| Adjustable airflow with meaningful steps | Higher output drains faster |
| Three power levels up to 25W | High-nic focus limits flexibility |
| Animated screen + battery/e-juice indicators | Screen/lighting isn’t stealthy |
| Consistent draw activation | Can collect condensation if ignored |
Details
- Typical price: $13.99–$22.99 (common online retail pricing varies by seller)
- Device type: rechargeable disposable
- Nicotine strength: 5% (50mg)
- Pre-filled e-liquid: 20mL
- Puff rating: up to 25,000
- Heating element: integrated triple mesh coil
- Output control: three power levels (max 25W)
- Charging: USB-C; our typical full recharge landed ~70–95 minutes

Review Score
| Metric | Score | Remarks |
|---|---|---|
| Flavor | 4.5 | Dense, saturated flavor that stays convincing across settings |
| Throat Hit | 4.2 | Strong and present; gets sharper on higher output |
| Vapor Production | 4.3 | Thick clouds for a disposable, especially mid/high |
| Airflow/Draw | 4.1 | Adjustable with real difference between positions; not ultra-tight |
| Battery Life | 4.0 | Reliable with recharging, but higher output shortens intervals |
| Leak Resistance | 4.3 | Stayed clean in pockets and bags with basic condensation wipes |
| Build Quality | 4.2 | Solid shell feel and stable draw behavior over repeated use |
| Ease of Use | 4.4 | Simple day-to-day; screen removes guesswork |
| Portability | 3.8 | Carryable, but chunky compared with smaller disposables |
| Overall | 4.2 | Strong daily-driver disposable for adults who prioritize flavor + control |
How to Choose the Lost Mary Quasar OS25000?
Pick it if you want a rechargeable disposable with a screen, adjustable airflow, and output control—and you’re comfortable with a stronger nicotine experience. Pass if you need ultra-tight MTL, low-nic flexibility, or truly minimal pocket carry. If you want a more compact, simpler “no-thinking” disposable, Elf Bar BC5000 is a mainstream option with a smaller footprint and straightforward performance. If you like the idea of modes and a more performance-driven feel, Geek Bar Pulse 15000 is a common alternative with adjustable airflow and mode switching.

Limitations
The Quasar OS25000 is good at being a “feature-rich disposable,” but that comes with trade-offs.
- Bulkier than simpler disposables, especially for front-pocket carry
- High mode can feel harsher and requires more frequent charging
- Nicotine strength focus limits choice for lighter-tolerance users
Lost Mary Quasar OS25000 Vs. Alternatives
- Why choose this model
- You want a long-lasting rechargeable disposable with a screen and indicators
- You care about flavor density from a triple mesh coil
- You want adjustable airflow and multi-level output control
- Alternatives to consider
- Geek Bar Pulse 15000: mode switching + adjustable airflow; strong mainstream availability
- Elf Bar BC5000: smaller, simpler daily carry with consistent basics
- RAZ TN9000: screen-forward disposable with adjustable airflow in a lower puff class
Pro Tips for Lost Mary Quasar OS25000
- Start on the lowest power setting for the cleanest flavor read, then move up only if you need more punch
- If throat hit feels sharp, open airflow one step and shorten pull length
- Wipe the mouthpiece once daily to manage condensation and keep the draw clean
- Don’t “chain-pull” on high output; let the coil recover for a few seconds between hits
- Top up charging before it’s fully dead to keep output steadier across sessions
- Use a basic USB-A to USB-C cable and a modest wall adapter for calmer charging behavior
- If flavor dulls early, drop one power level and slightly close airflow to concentrate flavor
- Keep it out of hot cars; heat makes the draw feel harsher and can exaggerate condensation
- Store upright overnight when possible to keep the mouthpiece area cleaner
FAQs
Does the Quasar OS25000 feel more like MTL or DL?
It lands in loose MTL by default, and with airflow opened up it can drift toward a restricted DL feel, especially on higher output.
How strong is the throat hit at 5%?
It’s firmly on the stronger side; low/mid power feels smoother, while higher power makes the hit more immediate and sharper.
Is it actually convenient for daily carry?
Yes, but it’s a chunky carry. It works best in a jacket pocket, bag, or desk rotation rather than tight jeans.
What’s the biggest day-to-day maintenance thing?
Condensation management: a quick wipe of the mouthpiece keeps the draw cleaner and avoids that “wet” mouthfeel.
Do the power settings meaningfully change the experience?
Yes—higher output boosts vapor density and hit intensity, while lower settings lean smoother and more consistent.
About the Author: Chris Miller