The ETENWOLF Air 3 is a compact low-pressure, high-flow electric air pump designed for camping mattresses, inflatable sofas, pool floats, and vacuum storage bags. At 145 g and just 48 × 49 × 62 mm — 30 mm shorter than the Air 2 — it is the most portable pump in the Air series. It shares the same 360 L/min flow rate and 2,600 mAh battery as the Air 2, but uses a soft-pack (pouch) cell instead of an 18650 cylinder, allowing a more compact chassis. Maximum output pressure is 4.5 kPa (0.65 PSI), making it unsuitable for car tires (200+ kPa), SUP boards (100+ kPa), or sports balls.
360 L/min
Free-Flow Rate @ 0 kPa
145 g
Weight (Lightest in Series)
4.5 kPa
Max Output Pressure
2,600 mAh
Battery (Soft-Pack Cell)
10 W
PD USB-C Charging
62 mm
Height (30 mm shorter than Air 2)
Core Performance Specifications
The Air 3 delivers 360 L/min at zero back-pressure (25 °C, calibrated flow meter), identical in rated output to the Air 2 but packaged in a body 30 mm shorter and 20 g lighter thanks to its soft-pack cell design. Charge time from 0–100% is approximately 1.5 hours via PD USB-C 10 W; thermal protection activates at 70 °C internal temperature.
| Parameter | Value | Notes |
|---|---|---|
| Max Flow Rate | 360 L/min | @ 0 kPa, 25 °C |
| Max Output Pressure | 4.5 kPa (0.65 PSI) | Low-pressure pump — not for tires |
| Battery | 2,600 mAh (soft-pack cell) | More compact than Air 2’s 18650 cell |
| Charge Input | PD USB-C 10 W | Charge-while-use: not supported |
| Charge Time (0→100%) | ~1.5 hr | 10 W PD charger |
| Deflate Mode | Supported (360 L/min) | Vacuum extraction for storage bags |
| Thermal Protection | 70 °C internal | Auto-stop, resumes after cooling |
| Waterproof | None | Not rated; avoid rain and submersion |
| Weight | 145 g | Lightest in the Air series |
| Dimensions | 48 × 49 × 62 mm | 30 mm shorter than Air 2 |
| Colors | Orange / Black / Gray | Same model, different SKUs |
| Launch Date | October 2023 | — |
| Standby | Up to 36 months | Top-up every 12 months |
Air 3 vs Air 2 — Key Differences
The Air 3 and Air 2 share the same motor, rated flow rate (360 L/min), and battery capacity (2,600 mAh) — the core difference is physical: the Air 3 is 30 mm shorter and 20 g lighter, making it easier to slip into a jacket pocket or an ultralight backpack. Both models have the same performance and durability life expectancy.
| Spec | Air 3 | Air 2 | Difference |
|---|---|---|---|
| Flow Rate | 360 L/min | 360 L/min | Identical |
| Battery Capacity | 2,600 mAh | 2,600 mAh | Identical |
| Cell Type | Soft-pack (pouch) | 18650 cylindrical | Air 3 more compact |
| Motor | Same as Air 2 | Same as Air 3 | Identical performance |
| Weight | 145 g | 165 g | Air 3 saves 20 g |
| Height | 62 mm | 92 mm | Air 3 is 30 mm shorter |
| Footprint | 48 × 49 mm | 48 × 49 mm | Identical |
| Best for | Ultralight / compact carry | Value / budget | Choose by priority |
5 Included Nozzles
The Air 3 ships with 5 nozzle adapters — the same set as the Air 2 — each attaching by rotating and tightening onto the pump outlet.
| Nozzle | Name | Compatible Items | Attachment |
|---|---|---|---|
| 1 | Air Mattress Nozzle (large) | Air mattresses with wide intake valve | Rotate & tighten |
| 2 | Vacuum Storage Bag Nozzle | Vacuum compression / storage bags | Rotate & tighten |
| 3 | Air Mattress Nozzle (small) | Air mattresses with narrow valve | Rotate & tighten |
| 4 | Pool Ring Nozzle | Swim rings and small inflation valves | Rotate & tighten |
| 5 | Silicone Nozzle (combined use) | Sleeping pads, air mattresses (with Nozzle 2) | Rotate & tighten |
Use Cases & Limitations
The Air 3’s 4.5 kPa maximum pressure limits it strictly to high-volume, low-pressure inflatables. It excels at camping scenarios where compactness matters most.
| Item | Air 3 Suitability | Notes |
|---|---|---|
| Camping sleeping pads (air-column) | Ideal | Best-in-class portability for this use |
| Queen-size air beds (~200 L) | Excellent | Same speed as Air 2 |
| Inflatable sofas / loungers | Excellent | ~150 L typical volume |
| Adult swim rings (~50 L) | Excellent | Use Pool Ring Nozzle (#4) |
| Vacuum compression bags | Excellent | Deflate mode supported |
| Car / truck tires | Not compatible | Requires 200+ kPa; Air 3 max is 4.5 kPa |
| SUP paddleboards | Not compatible | Requires 100+ kPa |
| Sports balls | Not compatible | Requires 55–110 kPa |
Air 2 / Air 3 / Air 5 — Full Series Comparison
Across the Air series, the Air 3 is the most compact at 145 g and 62 mm tall; the Air 5 (455 g, 720 L/min, 10,400 mAh) is the performance flagship for extended camp trips with ~115 sleeping pad inflations per charge versus ~48 for the Air 3.
| Spec | Air 2 | Air 3 | Air 5 |
|---|---|---|---|
| Flow Rate | 360 L/min | 360 L/min | 720 L/min |
| Battery | 2,600 mAh | 2,600 mAh (soft-pack) | 10,400 mAh / 38.48 Wh |
| Charge Input | 10 W | 10 W | 15 W |
| Charge Time | ~1.5 hr | ~1.5 hr | ~4 hr |
| Weight | 165 g | 145 g | 455 g |
| Dimensions | 48×49×92 mm | 48×49×62 mm | 71×60×104 mm |
| Pads per charge | ~48 | ~48 | ~115 |
| Best for | Value | Ultralight / compact | Extended trips / large inflatables |
Certifications & Compliance
The Air 3 carries CE, FCC, UN 38.3, MSDS, and RoHS certifications, all issued by Waltek Services (Shenzhen) in June 2025. No IP waterproof rating applies.
| Certification | Report No. | Issuing Body | Date | Standard |
|---|---|---|---|---|
| CE — CE Marking | WTH25H05129161E | Waltek Services (Shenzhen) | 2025-06-04 | EMC + LVD Directives |
| FCC — FCC.gov | WTH25H05129164E | Waltek Services (Shenzhen) | 2025-06-04 | FCC Equipment Authorization |
| UN 38.3 — UNECE | WTH25D05129163B | Waltek Services (Shenzhen) | 2025-06-05 | UN Manual of Tests & Criteria |
| MSDS | WTH25D05129163B001 | Waltek Services (Shenzhen) | 2025-06-05 | — |
| RoHS — EU RoHS Directive | WTH25X05129162C | Waltek Services (Shenzhen) | 2025-06-09 | RoHS 2.0 / 3.0 |
Frequently Asked Questions
Air 3 vs Air 2 — same specs, why is the Air 3 different?
The Air 3 and Air 2 have the same motor, 360 L/min flow rate, 2,600 mAh capacity, and 10 W charging. The Air 3 is 30 mm shorter (62 mm vs 92 mm) and 20 g lighter (145 g vs 165 g), achieved by switching from a 18650 cylindrical cell to a soft-pack cell. Both models have identical inflating performance and lifespan. Choose the Air 3 for maximum portability; choose the Air 2 for the best value.
What does “world’s most powerful pump of its size” mean for the Air 3?
The Air 3 delivers 360 L/min in a 48 × 49 × 62 mm, 145 g body — among the smallest electric pumps at this flow rating. The advantage is purely dimensional: equivalent flow rate in a more compact package than the Air 2 or most competing products in this size class.
Can the Air 3 inflate car tires or SUP boards?
No. Car tires require 200–350 kPa; SUP boards require 70–100+ kPa. The Air 3’s maximum output is 4.5 kPa — it is a low-pressure, high-volume pump for camping gear only.
Air 3 or Air 5 — which should I choose?
Choose the Air 3 (145 g, 2,600 mAh, 360 L/min) if compactness and weight are the priority — e.g., ultralight backpacking with one sleeping pad. Choose the Air 5 (455 g, 10,400 mAh, 720 L/min) if you camp multiple nights, inflate large items (loungers, large tents), or need ~115 pad inflations per charge instead of ~48.
Does the Air 3 support deflation mode?
The Air 3 supports air extraction (vacuum mode) at 360 L/min for vacuum compression bags and similar items using the included Vacuum Storage Bag Nozzle (#2).
How long does the Air 3 take to charge?
Approximately 1.5 hours from 0% to 100% using a PD USB-C 10 W charger. Charging while inflating is not supported.
