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Products & Applications
Whether you need temporary reliable compressed air rental for heavy construction or ultra-clean air for pharmaceutical production, GenAir has a rental solution for every sector.
With over hire compressors in our rental fleet, we offer the UK’s largest and most specialized range of diesel, electric, oil-free and oil-flooded air compressors—plus desiccant dryers, air receivers and essential ancillaries all for rental.
Oil-Flooded vs Oil-Free: What’s the Difference?
Oil-Flooded Compressors use oil in the compression chamber to cool, seal and lubricate. They’re ideal for general industry and construction where a small amount of oil carryover (filtered if needed) is acceptable.
Oil-Free Compressors, by contrast, are engineered to ensure no oil comes into contact with the air. They deliver the highest purity standards (Class 0 or 1) and are essential for industries where air quality is critical—like food, beverage, pharma, and electronics.
See our white paper on choosing the right compressor “Oil Free v Oil Flooded Compressors – choosing the right rental option for your industry”
Our Hire Fleet: Explore by Product Type
1. Oil-Flooded Compressors
Diesel Oil-Flooded Compressors
Our diesel-driven oil-flooded rental compressors are rugged, mobile, and built for tough site work. They’re the go-to solution for remote or off-grid locations—perfect for construction, roadworks, sandblasting, and general industry. Available from 120cfm to 1600cfm, with options for overspeed protection and spark arrestors for use in hazardous zones the perfect hire solution. > Find out more
Electric Oil-Flooded Compressors
When noise, emissions or energy costs are a concern, electric oil-lubricated hire compressors offer a quiet, clean, and efficient rental alternative. Best suited for indoor, urban, or low-emission sites where grid power is available. These are ideal hire solutions for general manufacturing and OEM testing environments. > Find out more
2. Oil-Free Compressors
Electric Oil-Free Compressors
These rental compressors deliver 100% oil-free compressed air for critical clean-air applications. Ideal for food, pharma, electronics, data centres, and cleanroom manufacturing. Weatherproof and rental-optimised, our electric oil-free units combine performance with peace of mind for the perfect hire solution. > Find out more
Hybrid Oil-Free Compressors
A unique GenAir innovation—our hybrid oil-free rental compressors start on diesel power and seamlessly switch to mains electricity when available. Perfect hire solution for emergency response, critical backups, and sites where power access is delayed but coming online.
> Find out more
Diesel Oil-Free Compressors
Portable and powerful, these rental compressors deliver Class Zero air in environments where electricity isn’t available. These hires solutions are used in sectors like food and beverage during outages, or on remote pharma or marine > Find out more
Dryers and receivers are vital to ensure air quality and system stability. Our rental desiccant dryers achieve dew points as low as -70°C PDP, protecting sensitive equipment and processes from moisture damage. Air receivers provide buffer storage and support consistent airflow, while hoses, filters and ancillaries complete the compressed air hire setup for a turn-key rental solution. > Find out more
Not Sure What You Need?
Product Selector
Choosing the right rental compressor doesn’t have to be guesswork. Use our Product Selector to find the most suitable node size and setup for your application, based on common airflow (CFM), pressures, site conditions, and our decades of experience in the compressed air rental market.
Diesel or Electric?
Each has its place
Diesel rental compressors are ideal for mobile, off-grid, or high-demand environments. They’re easy to deploy and built for tough jobs.
Electric rental compressors are quiet, clean, and cost-effective—especially where power is available. Fully weatherised, they shine in both indoor and outdoor applications, on short or long-duration jobs where emissions, noise and fuel costs matter.
For a tailored recommendation, use our Electric vs Diesel Calculator to estimate carbon and fuel savings based on your site setup.