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🚗💨 Inflate Fast, Live Free — Never Get Stuck Waiting!
The ETENWOLF ZEPHYR S3 is a vivid orange, portable tire inflator boasting ultra-fast 1-minute inflation for standard car tires, powered by a 7800mAh lithium battery with USB-C fast charging. Its 100% duty cycle and dual-cylinder cooling system allow continuous use without overheating. Featuring smart auto-stop, four preset modes, and a bright 300-lumen LED work light, it’s designed for versatile inflation needs—from cars and SUVs to bikes and sports balls—making it an essential, reliable companion for every millennial professional on the go.

























| ASIN | B0CP3P1FKZ |
| Additional Features | Quick Inflation |
| Air Flow Capacity | 1.25 Cubic Feet Per Minute |
| Best Sellers Rank | #34,755 in Automotive ( See Top 100 in Automotive ) #212 in Wheel & Tire Air Compressors & Inflators |
| Brand Name | ETENWOLF |
| Capacity | 1.25 Cubic Feet Per Minute |
| Color | Vivid Orange |
| Customer Reviews | 4.7 4.7 out of 5 stars (687) |
| Included Components | Air Compressor x 1,Air Chuck x 1,Pressure hose,Presta valve adapter x 1,Inflation needle x 1,High-pressure tapered nozzle x 1, USB A to C cable x 1,User manual x 1 |
| Item Type Name | TIRE INFLATOR |
| Item Weight | 1.47 Kilograms |
| Manufacturer | ETENWOLF |
| Maximum Power | 132 Watts |
| Model Name | Tire Inflator USMS3VO |
| Model Number | USMS3VO |
| Noise | 78 Decibels |
| Power Source | Battery Powered |
| Recommended Uses For Product | Tire Inflation |
| Style | Portable |
| Unit Count | 1.0 Count |
| Voltage | 12 Volts |
R**E
Compact, Reliable, and Perfect for Emergencies – A Must-Have in the Trunk
I bought the smaller version of this tire inflator because I wanted something lightweight, practical, and easy to keep in my trunk without adding extra bulk. It’s perfect for daily commuting, long trips, or just peace of mind. Beyond car tires, it comes with adapters for basketballs, footballs, bikes, and motorcycles, making it very versatile. It charges with a standard Android charger and I always leave it fully charged so it’s ready when needed. This inflator has already saved me a few times. It’s not meant to completely replace a tire shop, but if you get a flat or just need air to reach the nearest shop, this will absolutely get the job done. I especially find it useful in the winter months when tire pressure naturally drops — I just top off my PSI at home instead of wasting time and quarters at a gas station. Keeping your tires at the right pressure also helps with fuel economy and ride comfort, so it pays off in multiple ways. Performance-wise, I give it 5/5: • Very compact and easy to store. • Quickly tops off car tires. • Reliable for emergencies and peace of mind. • Great versatility with included adapters. The only trade-off is the battery life, which isn’t very long due to the smaller size. Filling all four tires up to ~35–38 PSI will already drop the battery a bar or two, and if you’re filling multiple vehicles it drains even faster. If you want longer runtime, the larger version is a better option — but for practicality and portability, this smaller one is perfect. Bottom line: For the price, convenience, and reliability, this is one of the best safety items you can keep in your car. It won’t replace professional equipment, but it will definitely get you out of a pinch. Highly recommended.
D**G
Amazing!
Inflated eight tires from 28psi to 35psi in around two minutes each. Unit did not get hot. Only used around 60-65% of charge. Very powerful LED light. Checked tire readings inside my two cars after the inflations and all eight readings were at 35psi. Could sit on a chair while using; much easier on back and knees. The preset at 35psi and the auto shutoff are great features. Pressure hose stores nicely and is of very adequate length. Pressure hose connects quickly and securely to tire stem. Totally clear and understandable instruction book -- a rarity these days. Great compact carrying case. Item arrive packed very carefully and securely. When one is unwrapping it, you immediately get the idea that the company cares about giving you a quality product and a very good experience. No need to go to service station and pay to use fickle, expensive air hoses. One of the most useful and high-quality products this 83-year-old has ever bought!
S**F
A wonderful piece of gear!
This thing is just great. First, each unit comes with a calibration certificate so you know that not only are the pressure readings within tolerance, the speed of inflation is as well. It is just remarkably easy to use. The hose snaps onto the tire valve, turn it on and read the pressure. If it is high, bleed it out by pressing a button. If it is low, press another button and it will inflate precisely to your preset pressure. Unlike many portable inflators, this one is fast and it is not overly noisy. Highly recommended!
S**R
This air compressor has changed my life!
I didn't send a photo because the machine looks like its photo. I'm not exaggerating when I say this has changed my life! I have a late model MB with those automatic tire readings & if one tire is out of balance even by 1 lb psi the idiot light comes on & its a major distraction. With seasonal changes, this happens several times a year. There are fewer and fewer "free" air pumps at service stations; the one I had to use last week was a credit card pump & charged $.3.75 for air. It also had a small electronic display, no "dings" as the air went through, and was silent so you couldn't tell when it had reached the required amount. As a "mature" woman, I also feel quite vulnerable putting air in tires, often with a bunch of unemployed males hanging around the service stations. They're probably no threat but I don't feel safe. Finally in desperation, I broke down & purchased this pump because of its outstanding reviews. Let me say, the reviews don't lie! It charges quickly, less than 30 min. It can fill 8 vehicle tires & 2 bicycles with one charge. It has a clamp to hold the hose onto the tire stem (FABULOUS!). It reads the psi as it pumps & stops on the exact pressure. I double checked the pressure with a hand gauge & it's on the nose. It's light, very portable, perfect to keep in the car trunk, and directions are clear & simple. I could use it for other inflation needs--it has various nozzles clamped to the back--but that's not my need. I can fix my tire pressure in the safety of my garage at any time! I love this appliance, as you can tell! I'm so pleased with this I purchased one for each of my siblings & talked my cousin into getting one. It's not the "cheapest" on the market but the price is fair and I'm thrilled with it.
A**S
Great value
I have a bike and a small car. If you have either or both, this compressor is great. My car tires need 33 PSI but were low around 25, so I just pumped them and it took just a few quick minutes and only drained 1 battery bar. Perfect. Bike is 70 PSI, went quickly. Remember to use the quick connection valve for both. If you need more air or got large inflatables, the larger model is twice the size but works the same. I like that this model is smaller.
C**O
Happy with the construction and ease of use. Works well.
Arrived partially charged and quickly charged to 100%. Nice, compact and well built. All 4 tires were a little low from sitting. Easy to hook up, select the default for car, press the button and walk away. Automatically shuts off at requested pressure. Inflated all 4 tires to pressure without any issues and plenty of charge left to do more. I'd buy it again. It would make a nice gift. In the summer heat, instructions advise to not store it in the vehicle. I'm okay with that. 6/20/25: SUV's tire pressure warning beeped. We pulled into a parking lot and resolved the issue in less than 5 minutes.
S**M
Unlike the majority of inflators listed, the Etenwolf is manufactured to provide accurate results. As tyre pressure accuracy and consistency is a central safety consideration, I would suggest calibration would be the primary design criteria. In achieving internationally recognised calibration standards, Etenwoolf have not however compromised on useful features including a low pressure inflator and multi-function torch. The compact size, cordless design and useful battery life contribute to its ease of use. Well worth the extra cost for a fit-for-purpose product.
T**O
Used it on a few SUV tires and its does a pretty good job..Takes about 5 minutes from a complete flat to around 50 psi.Runs a tad warm and not too noisy. Its better to let it cool down a bit after each tire though.Time will tell how long it last but first impressions it does it job and small enough to leave inside a trunk.
R**N
El equipo está super bonito, muy bien diseñado e infla rápido las llantas, el problema es que no infla tantas llantas como dice, por ejemplo, fue probado en un mini cooper, y se les aplico a 3 llantas 15 psi más o menos (de 20 a 35 psi) y 1 se lleno desde 0, ya con eso solo quedo una rayita de 4 de carga del equipo (esto fue durante el primer uso y tras haberlo cargado al máximo), así que es muy fácil de transportar (es minúsculo), ligero y muy bonito, pero para inflar todas las llantas desde 0 no alcanza, es más que nada para una emergencia.
M**D
Excellent product
S**E
I RARELY write reviews, but felt compelled to really share my experience with this AMAZING inflator. I am EXTREMELY IMPRESSED!!!❤️❤️❤️❤️❤️❤️❤️❤️❤️❤️ It exceeded all expectations. Why: 1. Have tried several brands; this one stands out as the best by far. 2. Simple and intuitive to operate—did not need to consult the manual. 3. Gas stations charge $2 for every 2 minutes of air, making it expensive to fill all four tires. 4. This pump offers significant savings and convenience compared to using gas station air. 5. Efficiently inflates all four tires without hassle. 6. It comes with a carry-on bag which is super convenient. I place latex gloves inside, so my hands don't get dirty when I am inflating my tires. 7. I love how it stops when you set it at the desired PSI. 8. It's super FAST! 9. The hose is long enough, unlike other brands where you have to physically hold it in your hand if it doesn't reach. 10. Liked it so much, I purchased a second unit as a gift for my dad.
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