Rent the Right Air Compressor: A Colorado Homeowner and Contractor Guide to CFM

Compressed air runs more of a job site than most people realize. Nail guns, jackhammers, sandblasters, impact wrenches, and pipe blow-downs all depend on the same basic equation: enough CFM at enough PSI to keep the tool running instead of gasping for air halfway through the task. At Arvada Rent-Alls, we’ve been matching Denver-metro customers to the right compressor since 1963, and it’s one of the easiest rentals to get wrong. Grab a compressor with too little output, and your framing crew spends more time waiting on the tank to refill than actually driving nails. Grab a 185 CFM towable for a weekend deck project, and you’ve paid for a lot more machine than the job needed.

The good news is that once you understand what each unit is built for, the choice is straightforward. Here’s how we break it down for homeowners and contractors who rent our air compressors.

For the Homeowner: Emglo and Hitachi Electric

Most residential jobs don’t need much air; they need reliable air in a package you can carry up a ladder or set next to a workbench. Our Hitachi Electric compressor is the lightest option in the fleet at 60 pounds, putting out 4.0 CFM at 90 PSI from its twin-tank, 2 HP setup. It’s built for pneumatic nailers, trim work, and smaller finish carpentry jobs where portability matters more than raw output. It can also handle a small residential sprinkler blowout, though it will need frequent recharge cycles to fully clear the lines.

Step up to the Emglo Electric, and you get an 8-gallon twin tank developing 6.2 CFM at 100 PSI, still electric and still portable at around 160 pounds, but with enough reserve capacity to run a pneumatic impact wrench or handle a medium-sized sprinkler system blowout without constant cycling. If you’re framing a shed, finishing a deck, or tackling a weekend’s worth of nail-gun work, this is usually the sweet spot.

Homeowners make up a smaller share of our compressor rentals, but they’re often the trickiest calls to get right, because the difference between the Hitachi and the Emglo comes down to how long you need to run the tool continuously, not just what the tool is.

For the Contractor: 90 CFM and 185 CFM Towables

Once you’re running jackhammers, breakers, sandblasting equipment, or multiple pneumatic tools from a single source, electric twin-tank units aren’t in the conversation anymore. That’s where our towable rotary screw compressors take over, and it’s where most of our air compressor business lives.

The 90 CFM Towable Compressor runs on a Kubota D1105-E3B 25 HP diesel engine and delivers 90 CFM at 100 PSI, enough to run a single medium breaker, a sandblasting rig, or a pipe blow-down on a utility job without the engine straining. At 7.9 gallons of fuel capacity and an automatic glow plug system, it’s built to sit on a job site all day and start reliably every morning, even on the cold mornings that show up more often than people expect along the Front Range.

When a crew needs to run two tools at once, drive a larger breaker, or supply air across a bigger footprint, the 185 CFM Towable Compressor is the next step up. It’s a rotary screw unit rated at 185 CFM at 100 PSI, with a curbside instrument panel, single-motion rotary start, circuit-breaker protection, and an idle warm-up valve to protect the compressor during cold starts. Note that it tows behind a vehicle with a working trailer light connection, and hammers and breakers rent separately, so plan your load list accordingly. It pairs naturally with equipment from our hammers-and-breakers lineup or our surface-preparation and sandblasting equipment for crews tackling demolition or coating removal.

Matching CFM to the Job, Not the Job to the Compressor

The fastest way to lose a day on site is sizing the compressor after you’ve already picked the tool. Before you book, add up the CFM requirements of everything you plan to run off the compressor at once, not just the biggest single tool, and build in a buffer. A breaker that needs 60 CFM run on a compressor rated right at 60 CFM will underperform the moment the hose has a kink or a fitting isn’t perfectly sealed.

If you’re not sure which unit fits your scope, whether it’s a homeowner project or a multi-week commercial job, our counter team at either location can walk through the tool list with you and match it to the right compressor before it ever leaves the lot.

Browse the full lineup at arvadarentalls.com, check availability on our air compressor rentals page, or call us directly at our Arvada location (303-309-4240) or our Littleton location (303-578-3628) to reserve the right unit for your next job.