# What are the features that differentiate between various portable air compressor pumps? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the features that differentiate between various portable air compressor pumps?

## Products

### Wolfbox Megavolt 24 Air (Megaflow 24) Inflator and Jump Starter
```yaml
product: wolfbox-megavolt-24-air-megaflow-24-inflator-and-jump-starter
brand: Wolfbox
price_gbp: 179.06
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 5.3 lb
flow_rate: 45 L/min
portability: Yes
max_pressure: 160
power_source: 24,000 mAh lithium-ion battery
```

- **Price:** £179.06 [^1]
- **Summary:** A 4-in-1 portable jump starter and air compressor with a 24,000 mAh battery, 4000A peak jump-start capability, 65W USB-C power delivery, 400-lumen flashlight, and an inflator rated to 160 PSI at 45 L/min. It's built for vehicle emergency kits and trunk storage, offering IP64 resistance and wide operating temperatures.
- **Ideal For:** Ideal for comparing portable air compressors because it combines a high max pressure (160 PSI) and a relatively high inflow rate (45 L/min) with integrated battery power and fast USB-C charging, demonstrating how pressure, flow rate, and power source differentiate portable units.
- **Additional Sources:** [^2]

### VIAIR EVC31 PRO
```yaml
product: viair-evc31-pro
brand: VIAIR
price_gbp: 51.68
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
weight: 1 lbs / 0.45 kg
flow_rate: 0.88 CFM / 25 LPM
portability: Yes
max_pressure: 150
power_source: Lithium-Ion battery (3×2600mAh) and 12V auxiliary port
```

- **Price:** £51.68 [^3]
- **Summary:** The VIAIR EVC31 PRO is a compact rechargeable portable tire inflator with a 150 PSI maximum, digital preset control, 30in hose, built-in LED light, and USB-C charging. It runs ~25 minutes per charge from its 3×2600mAh battery and can also draw power from a vehicle 12V accessory port, making it suitable for cars, light trucks, and outdoor use. It includes multiple inflation tips and a carry bag.
- **Ideal For:** Ideal for comparing portable air compressors because it combines high max pressure (150 PSI), measurable flow rates (up to 0.88 CFM / 25 LPM), and dual power options (battery plus 12V auxiliary), highlighting trade-offs between pressure, flow, and portability.
- **Additional Sources:** [^4], [^5], [^3], [^4], [^5]

---
## References & Sources
[^1]: Wolfbox (official), accessed 2026-06-15. https://wolfbox.com/products/jump-starter-with-air-compressor-tire-inflator-wolfbox-megavolt-24air
[^2]: Popular Science shop listing, accessed 2026-06-15. https://www.popsci.com/gear/wolfbox-4-in-1-jump-starter-with-air-compressor-review/
[^3]: VIAIR (official), accessed 2026-06-15. https://viaircorp.com/products/evc31-pro
[^4]: Nomadic Supply, accessed 2026-06-15. https://nomadicsupply.com/viair-evc31-pro-rechargeable-portable-air-compressor/
[^5]: Evergreen Offroad, accessed 2026-06-15. https://evergreenoffroad.com/products/viair-every-vehicle-carry%E2%84%A2-evc31-pro-rechargeable-portable-compressor-evc31-1