How to Choose an Air Compressor
Whether you’re inflating tires, running air tools in your shop, or powering pneumatic systems on the jobsite, choosing the right air compressor can make all the difference. Mi-T-M air compressors are built to handle every application, from light commercial use to heavy industrial performance.
This guide will walk you through the key factors to consider when buying an air compressor and help you select the air compressor that best fits your needs.
Understanding Your Application
Before looking at specs or sizes, start with how you’ll use your air compressor. Each job has different air requirements:
- Home or light shop use: inflating tires, nail guns, small tools
- Contractor or construction use: framing guns, impact wrenches, paint sprayers, multiple air tools
- Industrial use: continuous, high-pressure demand for machinery or production environments
Your compressor should deliver enough air (CFM) and pressure (PSI) to power all the tools you plan to use, ideally with a little extra capacity for future growth.
Step 1: Know the Key Terms
When comparing air compressors, these are the most important specifications to understand.
CFM (Cubic Feet per Minute)
This measures the volume of air the compressor produces. Add up the air demand (CFM) for each tool you’ll use simultaneously, then choose a compressor that exceeds that number by about 20 %.
PSI (Pounds per Square Inch)
The pressure your compressor can deliver. Most pneumatic tools operate around 90 PSI, but heavy-duty or industrial equipment may require more.
Horsepower (HP)
Determines how much work the motor or engine can perform. More horsepower means faster air recovery and greater capacity.
Tank Size
A larger tank stores more compressed air, allowing tools to run longer before the compressor cycles. For intermittent use, a smaller tank may suffice; for continuous operation, a larger tank is more efficient.
Step 2: Choose Your Power Source
Mi-T-M manufactures both electric and gas air compressors to match your working environment.
Electric Air Compressors
- Ideal for indoor use or areas with easy access to power
- Quieter operation and zero emissions
- Great for workshops, garages, or manufacturing facilities
View Electric Models
Gas Air Compressors
- Best for outdoor or remote locations without electrical access
- Powerful, portable, and reliable for construction or service vehicles
- Durable engines designed to run in rugged conditions
View Gas Models
Step 3: Select Your Stage – Single vs Two Stage
Mi-T-M offers both single-stage and two-stage air compressors to fit your pressure and performance needs.
Type | Compression Process | Typical PSI Range | Best For | Key Benefit |
---|---|---|---|---|
Single Stage | Air compressed once | Up to 135 PSI | Light commercial & residential | Simple, affordable, easy to maintain |
Two Stage | Air compressed twice | Up to 175 PSI | Industrial & continuous use | Higher pressure & efficiency |
Single Stage Air Compressors
Two Stage Air Compressors
Step 4: Decide on Portability and Mounting
Type | Best For | Benefits |
---|---|---|
Portable Compressors | Contractors, field technicians, mobile jobs | Easy to move between job sites; available in wheelbarrow, hand-carry, and truck-mount options |
Stationary Compressors | Workshops, manufacturing, automotive shops | Larger tanks and continuous-duty power for fixed installations |
Mi-T-M’s compressors are built with heavy-duty frames, reinforced tanks, and corrosion-resistant finishes. Whether you’re rolling it across a jobsite or anchoring it in your shop, you can count on years of dependable service.
Portable Air Compressors
Stationary Air Compressors
Step 5: How to Size Your Compressor Properly
A correctly sized compressor keeps your tools running efficiently without overworking the motor.
Formula:
Add up the CFM requirements of all tools you’ll use at the same time, then multiply by 1.25 to allow a 25 % margin.
Example:
Impact Wrench (5 CFM) + Air Ratchet (4 CFM) = 9 × 1.25 = 11.25 CFM minimum
Then choose a Mi-T-M compressor rated slightly above that number at 90 PSI.
Step 6: Quick Comparison Chart
Category | Typical Tank Size | Power Source | Best For | Key Advantage |
---|---|---|---|---|
Single Stage | 3 – 30 gal | Electric / Gas | Home, light commercial | Compact and cost-effective |
Two Stage | 20 – 120 gal | Electric / Gas / Diesel | Industrial, continuous use | Higher pressure and longevity |
Gas Portable | 8 – 20 gal | Gasoline | Jobsite, mobile service | Mobility and power |
Stationary Electric | 60 – 120 gal | Electric | Shops & manufacturing | Quiet and efficient operation |
Step 7: Good – Better – Best Recommendations
Level | Mi-T-M Model Type | Ideal User | Key Benefit |
---|---|---|---|
Good | 3 – 8 Gallon Single Stage Electric | DIY & garage users | Plug-and-play simplicity |
Better | 20 Gallon Two Stage Gas | Contractors & field techs | Portable jobsite power |
Best | 60 – 120 Gallon Industrial Two Stage Electric | Manufacturing & service shops | Continuous-duty industrial performance |

Need Help Choosing? Talk to a Mi-T-M Expert
Our team is here to help you find the right fit based on your needs and budget.
Related Videos
Learn directly from Mi-T-M experts with these quick video guides:
- How to Use a Gas Air Compressor
- How to Use an Electric Air Compressor
- Using the Mi-T-M Air Compressor / Generator / Welder Combo
- Outfit Your Service Vehicle with a Compressor
Final Thoughts
Selecting the right air compressor doesn’t have to be complicated. By understanding your air requirements, power source, and application, you can easily find the perfect fit within Mi-T-M’s lineup.
Whether you’re a DIY user, contractor, or industrial operator, Mi-T-M delivers the reliability, performance, and durability to keep your operation running smoothly for years to come.