Adjust MyCool 40K Review — 5 Cooling Levels, 15 Flavors, and the Widest Selection in the Lineup
MyCool is the device that put Adjust on the map. It was the first in the lineup to ship, and it's still the one with the most flavors and the most recognizable feature — a 5-level cooling system that goes from barely-there breeze to genuine Arctic freeze. If you like menthol even a little, this is the Adjust device to evaluate first.
Full Specs
| Puff Count | Up to 40,000 (Turbo I mode) |
| E-Liquid Capacity | 20 mL pre-filled |
| Nicotine | 5% (50 mg/mL) salt nicotine |
| Battery | 850 mAh USB-C rechargeable |
| Charge Time | ~90–100 minutes (USB-C, pass-through supported) |
| Coil | Triple mesh coil |
| Turbo Modes | Turbo I (~40K puffs) · Turbo II (~30K) · Turbo III (~20K) |
| Coolness Levels | 5 levels: Breeze → Cool → Chill → Frost → Arctic Freeze |
| Display | E-liquid & power indicators with ice level feedback |
| Airflow | Adjustable |
| Mouthpiece | Bite-friendly ergonomic design |
| Dimensions | 102 × 27 × 9 mm (C-frame body) |
| Flavors | 15 options (most in Adjust lineup) |
| Price at VOS | $21.99 |
The 5-Level Cooling System — What Each Level Actually Feels Like
The cooling system is what MyCool is built around and the reason most people buy it. Unlike devices that offer a binary "ice on/off" or a vague "low/high" toggle, MyCool gives you five distinct and genuinely different levels. I tested each across multiple flavors and here's what to expect:
Barely noticeable coolness. The fruit and candy flavors come through at full strength with just a hint of cool on the exhale. Best for vapers who normally avoid menthol but want to try the MyCool without committing to ice.
A pleasant, balanced cooling that enhances fruit flavors without overpowering them. This is the sweet spot for most people — enough ice to feel refreshing, not enough to numb your palate. Works exceptionally well with Dragon Strawnana and Peach+.
Now you feel it on the inhale, not just the exhale. Menthol presence becomes obvious and starts to reshape the flavor profile. Sweet notes pull back slightly and the throat hit gains an icy edge. Solid for tropical and berry flavors.
Strong, assertive menthol. The cooling becomes the dominant sensation and flavor becomes the background note. This is where Tigers Blood transforms — the coconut that hides at lower levels suddenly pops forward against the ice. Menthol fans will feel at home here.
Maximum ice. Your throat, mouth, and sinuses all register the cold. Flavor becomes a faint backdrop to the menthol experience. Best reserved for Miami Mint, Sour Apple Ice, and Tigers Blood — flavors built to withstand this level. Delicate fruit flavors (Peach+, Mango Magic) get buried here.
Turbo Modes: How Power Affects the Cooling Experience
MyCool's three turbo modes interact with the cooling system in a way that creates more combinations than you'd expect. Higher power modes amplify the cooling effect — so Level 3 Chill on Turbo III (the highest power) feels noticeably colder than Level 3 Chill on Turbo I (the lowest power). Here's the practical breakdown:
| Turbo Mode | Puffs | Vapor | How It Changes Cooling |
|---|---|---|---|
| Turbo I (Lowest) | ~40,000 | Light | Gentlest vapor, cooling is subtle even at higher levels. Maximum battery life. |
| Turbo II (Mid) | ~30,000 | Medium | Balanced. Cooling and flavor both come through clearly. My recommended starting point. |
| Turbo III (Highest) | ~20,000 | Dense | Cooling feels amplified by ~30%. More sweetness comes through. Higher throat hit. |
All 15 Flavors — Rated and Ranked
MyCool's 15-flavor roster is the widest in the Adjust lineup, covering fruit, berry, tropical, sour, candy, and mint categories. I tested each at Level 2–3 ice on Turbo II for consistency, then noted which ice level brought out the best expression. For full tasting notes across all Adjust devices, see the complete flavor directory.
| Rank | Flavor | Quick Take | Best Ice | Rating |
|---|---|---|---|---|
| 1 | Tigers Blood ⭐ | Watermelon + strawberry + coconut. Coconut emerges above Level 3 — transformative. | 3–5 | 9.5/10 |
| 2 | Dragon Strawnana ⭐ | Dragon fruit + strawberry inhale, banana exhale. Complex and satisfying. | 2 | 9/10 |
| 3 | Scary Berry ⭐ | Dark berry fusion with icy bite. Bold and deeply flavorful. | 2–4 | 9/10 |
| 4 | Cherry Strazz | Sour cherry + strawberry + tart raspberry. Layered and interesting. | 2–4 | 8.5/10 |
| 5 | Sour Lush Gummy | Sour pineapple gummy bear. Skip the ice — it already has enough. | 0–1 | 8.5/10 |
| 6 | Peach+ | Amplified peach sweetness. Best at low ice where the fruit stays natural. | 1–2 | 8.5/10 |
| 7 | Sour Strawberry Dragonfruit | Tart strawberry upfront, exotic dragonfruit body. Bright and tangy. | 1–3 | 8/10 |
| 8 | Mango Magic | Ripe mango with creamy sweetness. Versatile across all ice levels. | 1–3 | 8/10 |
| 9 | Baja Splash | Tropical citrus medley with lime and mango. Bright and summery. | 2–3 | 8/10 |
| 10 | Summer Splash | Watermelon, lemon, mixed berries. Poolside vibes in vapor form. | 2–3 | 8/10 |
| 11 | Miami Mint | Pure spearmint + peppermint. The go-to for max-ice lovers. | 3–5 | 7.5/10 |
| 12 | Blue Razz Ice | Classic blue raspberry candy with built-in menthol. Familiar and reliable. | 1–2 | 7.5/10 |
| 13 | Cherry Fuse | Bold cherry with warm-to-cool exhale transition. Solid but one-dimensional. | 2–3 | 7.5/10 |
| 14 | Watermelon Ice | Sweet watermelon with frosty kick. Refreshing but not complex. | 2–4 | 7.5/10 |
| 15 | Sour Apple Ice | Crisp sour green apple with sharp menthol. Aggressive flavor that needs high ice. | 3–5 | 7/10 |
MyCool vs MyRusher — Which Adjust Device to Buy
These are the two strongest devices in the Adjust lineup, but they serve different vapers. Here's the quick decision framework:
| If you prioritize... | MyCool 40K | MyRusher 40K |
|---|---|---|
| Flavor variety | ✅ 15 flavors | 10 flavors |
| Menthol/cooling control | ✅ 5 levels | — |
| Vapor intensity control | 3 turbo modes | ✅ 3 power modes |
| Battery life | 850 mAh | ✅ 1,000 mAh |
| Transparent tank | ❌ | ✅ |
| Coil type | Triple mesh (smoother) | Dual mesh (denser) |
| Charge time | ~100 min | ~50 min |
| VOS Price | $21.99 | $20.99 |
Bottom line: MyCool is the better choice if menthol is part of your daily rotation and you want the widest flavor selection. MyRusher is the better pick if you want power customization, faster charging, and the ability to see your juice level. They complement each other rather than compete. Read the full MyRusher 40K Review for a detailed hardware comparison.
Battery and Charging — The One Weakness
The 850 mAh battery is adequate but not exceptional. With moderate use on Turbo I, expect to charge once during a full day. On Turbo III, you'll need a mid-day top-up. The main frustration is the charge time — roughly 90–100 minutes for a full cycle, which is almost double what the MyRusher achieves with its larger 1,000 mAh battery.
Pass-through charging works, so you can vape while plugged in. USB-C is standard. The display shows battery and e-liquid level indicators, though they're simpler than the MyRusher's animated percentage display.
Pros and Cons
✅ 15 flavors — widest selection in the Adjust lineup
✅ Triple mesh coil delivers smooth, consistent draws
✅ Turbo modes × ice levels = dozens of real combinations
✅ Compact C-frame body with comfortable grip texture
✅ Bite-friendly mouthpiece — no juice-in-mouth issues
✅ Strong flavor accuracy across fruit, berry, and candy profiles
❌ ~100-minute charge time is the slowest in the lineup
❌ No transparent tank — can't visually check juice level
❌ Display is basic compared to MyRusher's animated screen
❌ Doesn't achieve a truly restricted lung hit
Final Verdict
MyCool 40K is the most flavorful device in the Adjust lineup and the most versatile for menthol lovers. The 5-level cooling system works exactly as advertised — each level creates a genuinely different experience, and the interaction with turbo modes gives you more customization depth than any other cooling-focused disposable I've tested. The battery and charge time are real drawbacks, and the MyRusher wins on hardware specs. But if flavor variety and cooling control are what you're after, MyCool is the clear pick — and at $21.99, it's competitively priced for what it delivers. See how it compares to MySour if you're deciding between the two most popular Adjust devices.