Skip to searchSkip to main content
www.thebohan.com

  • Diaphragm Air Compressors

    Looking for an air compressor that delivers clean, oil-free air with minimal contamination risk? A diaphragm air compressor is the ideal solution for industries where air purity, chemical compatibility, and precision are critical. These compressors are specifically engineered for laboratories, medical equipment, pharmaceutical manufacturing, and other clean operations that can’t tolerate oil or particle contamination.

    Request service
    Talk to an EXPERT

Excellent for chemical & gas handling

Because the compressed air never touches the motor or crankcase, these compressors are perfect for handling corrosive gases, toxic substances, or high-purity applications.

100% Oil-Free air

Diaphragm compressors produce pure, uncontaminated air, ideal for medical, scientific, and cleanroom environments.

Leak-Free, safe design

With sealed compression chambers, diaphragm compressors offer enhanced safety when working with hazardous or reactive gases.

Quiet operation

Diaphragm compressors operate at low noise levels, making them suitable for lab environments or indoor installation near workstations.

Low maintenance

Fewer moving parts and no oil means minimal wear and lower maintenance costs compared to traditional piston or rotary compressors.

Diaphragm Air Compressor

A diaphragm air compressor uses a flexible membrane (or diaphragm) to compress air. The diaphragm is driven by a crankshaft and motor, creating a reciprocating motion that draws in and compresses air—without direct contact between the air and mechanical components. This design makes diaphragm compressors completely oil-free, reducing the risk of contamination and eliminating the need for air treatment systems in sensitive applications.

Diaphragm air compressors are used across industries that demand clean, precise, and contaminant-free air or gas.

Laboratories & Chemical Processing  

Gas sampling, air analysis, and research instruments, Safe compression of reactive or corrosive gases

Medical & Dental Equipment 

Ventilators, anesthesia machines, and dental tools





Environmental Monitoring 

Sampling air quality or greenhouse gas emissions






Pharmaceutical & Biotech   

Cleanroom environments, lab air supply, Sterile packaging, bottling, and clean processing



4 - 500

cfm

5 - 300

hp

350 - 15000

psi

220, 420, 575

Volts

Request a Quote or Technical Consultation

We offer a full range of diaphragm air compressors from top manufacturers, backed by expert support and technical guidance. From lab-ready compact models to larger industrial-grade systems, we have the right solution for your clean air needs. When selecting a diaphragm air compressor, consider: Required pressure range (psi/bar), flow rate or cfm needs, type of gas or air being compressed, compatibility with chemicals or reactive substances, installation space and noise requirements. Our experts can help you find the ideal model for your specific use case, whether you're outfitting a cleanroom, lab bench, or production line. Contact us today for a free quote or to speak with a specialist about your diaphragm compressor application. 

Request service
Talk to an EXPERT