A 12V air compressor runs off your vehicle’s battery, so you can let tyres down for sand or gravel and pump them back up before the bitumen. Each portable air compressor here works as a tyre inflator and tyre deflator; pick 85, 200 or 320 L/min to match your tyre size.
Air flow, measured in litres per minute (L/min), decides how quickly a 4×4 air compressor refills a tyre. 85 L/min suits cars and small SUVs; 200 L/min is a good all-rounder for touring; 320 L/min saves time on large 4×4 tyres after a beach run.
Using a tyre inflator safely
Run the engine while you inflate so the battery doesn’t drain, check pressures with a gauge, and give the compressor a break on long sessions if the manual recommends a duty cycle.