Compressed Air Quality Testing Services | ISO 8573 Compliance
Compressed Air Testing Services
Compressed air is used in greater than 70 percent of manufacturing applications, including pharmaceutical, food and beverage, and medical device manufacturing. We can provide you with the peace of mind that your compressed air system passes the tests required to demonstrate the quality of the compressed air used in product contact. We will include non-viable particle assessment, dew point temperature analyzation, oil mist saturation and viable particulate (microbial) sampling. Annual validation can confirm that you are maintaining the quality of air that contacts the sensitive products you manufacture or distribute.
What We Test: Compressed Air Analysis Services
Compressed air that comes into contact with your product or packaging must meet strict purity requirements. But even a well-maintained system can be contaminated. Class 1 Air performs comprehensive on-site compressed air quality testing that measures the four major categories of contamination defined by ISO 8573: solid particulates, moisture, oil and hydrocarbons, and viable microorganisms. Our certified technicians sample directly from your point of use, ensuring results reflect real-world conditions rather than theoretical system performance.
Each test generates documented, quantified results that can be benchmarked against ISO 8573 purity classes, USP standards, FDA cGMP requirements, or your own internal specifications. Whether you are preparing for a regulatory audit, validating a new installation, investigating a contamination event, or simply maintaining your annual compliance cycle, our testing program gives you the evidence you need to demonstrate that your compressed air system is performing as required. All results are provided in a clear written report, delivered promptly so your operations are not delayed.
Class 1 Air serves pharmaceutical manufacturers, food and beverage processors, medical device companies, and healthcare facilities across Wisconsin, Illinois, and Indiana. With the largest accredited service team in the Midwest and technicians averaging ten years of tenure, we bring a depth of industry knowledge that goes beyond collecting samples.
Particle Count Testing
Measures the concentration and size of solid particles in your compressed air to verify compliance with ISO 8573 purity classes.
Dew Point Testing
Determines the moisture saturation point of your compressed air to prevent condensation, corrosion, and product contamination.
Water Testing
Detects liquid water and water vapor content in compressed air lines, identifying risks to equipment, piping, and end-product quality.
Microbial Testing
Samples viable (living) microorganisms including bacteria, yeast, and mold to confirm compressed air meets pharmaceutical and food-grade biological standards.
Hydrocarbon Testing
Quantifies oil vapor and total hydrocarbon concentration to ensure compressor-derived contamination stays within safe, compliant limits.
Industries We Serve
Pharmaceutical & Biotech Manufacturing
Compressed air that contacts drug products, active ingredients, or sterile packaging must meet rigorous ISO 8573 and FDA cGMP purity requirements, and a single contamination event can trigger costly recalls, batch failures, or regulatory action. Class 1 Air provides certified compressed air quality testing that gives pharmaceutical and biotech manufacturers the documented evidence needed to satisfy auditors and protect product integrity.
Food & Beverage Processing
From bottling lines to packaging equipment, compressed air in food and beverage facilities regularly comes into direct or indirect contact with consumable products, making contamination control a critical food safety obligation under SQF, HACCP, and ISO 22000 frameworks. Our on-site testing verifies that your compressed air meets food-grade purity standards, helping you maintain certifications and protect your brand.
Medical Device Manufacturing
Compressed air used in medical device production must be demonstrably free of particles, moisture, oil, and microbial contamination to satisfy FDA quality system regulations and ISO 13485 requirements. Our testing provides the traceable, documented results that medical device manufacturers need to validate their compressed air