ETENWOLF ZEPHYR S3 Tire Inflator Portable Air Compressor

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.

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.

Excellent product as judged from first inspection and use. Quality is better than expected including smaller details. Very quick and easy to check and top up 8 tires on two cars. No bulky tanks, hoses, and clumsy gauges - just attach hose and fill to desired level. For its compact size it fills tires acceptably quickly and you don't have to hold any thing while filling. If it continues to work this well in the long run -- this is indeed a home run !

This pump works great. My Honda that I seldom drive has a slow front tire leak. The tire was almost flat, it read 7 pounds of pressure. This pump inflated it in about 4 minutes and I toped off the other tires all about 28 pounds. All tires were inflated to 35 pounds. It looks like I used about 1/4 th of the battery power, pretty good on battery use. Excellent pump in a handy carrier. Recommended item.

This pump is amazing! I use it, solely, for mountain bike and cruiser tires. I am still on it's first full charge and have completely filled at least 5 tires and partially filled at least 6 more and it's still only down one bar of power. This thing is a beast for it's size. I never thought it would fill as quickly and efficiently as it does. All these years I've been using a hand pump, when I could have doing it the easy way with this! I also love how the rubber feet prevent it from "walking" around while on (like so many others do). -minus a TINY portion of one star for the rubber coated controls cover coming unglued/loose on one side. Still works fine though!

Love this product it’s easy to use, portable I keep it inside my car. I set the pressure gauge an it stops when it hit my number. I also like versatility I use it at work on my bike ,basketball and football.

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.

Recently the air compressor I used died, so I bought this one as a replacement. It honestly is much better than what I had and much better than expected. It was calibrated and is accurate with what is shown on my tpms. This is about a third quieter than my old one also. It has a nice long hose, so super easy to reach the tire stems regardless of positioning. I needed to add 5 lbs to all 4 tires and this unit accomplished the task very fast. A rubber bottom too, so it doesn't move during operation. Overall, a well designed, high quality unit. Highly recommend!

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.

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.

Excellent product

This pump is pretty quick. I deflated a mountain bike tire - 2" x 26" and it inflated it to 50 PSI in less than a minute. I like the fact that it has a 100% duty cycle. My previous pump would quit after a few minutes and not work until it cooled down some time later. Quite frustrating. The only downside I see with this pump is inflating a dead flat car tire. That may take a long time and not quite getting it up to full pressure. Still, for anything else, including bike, MC tires, scooter, and beach ball it should be GREAT. I am super happy with this purchase, especially at the great sale price. Recommended!

Nice little unit, however I wouldn't buy it at full price just because of the battery power. At full charge I can fill up one tire from 11 psi to 38 psi and it goes from 4/4 bars to 1/4 bars. You're definitely not going past filling up 2 tires. Great for smaller items and 1 tire as its compact and quick.