A compressed air filter removes contaminants such as water (droplets and dew point moisture), oil (aerosols and vapor), and solid particles. Without effective filtration, these contaminants can lead to machine damage, reduced quality in end products, increased maintenance, unplanned downtime, and higher energy costs. At JustAir, our compressed air filters ensure that your compressed air system consistently meets the most stringent industry and ISO standards.
Class Zero Plus and ISO 8573-1 Compliance — JustAir compressed air filters are designed to meet the highest purity classes specified in ISO 8573-1. For industries where absolute purity is required (food, pharmaceuticals, electronics, medical applications), this means your air is free of oil, vapors, and microscopic dust particles.
Oil-free technology and 24/7 continuous monitoring — Even with oil-free compressors, contaminants can enter through the environment or piping. Our compressed air filters, combined with JustAir’s cloud-based monitoring, proactively alert you to any decline in filter performance so you can take timely action.
Energy-efficient and low total cost of ownership (TCO) — We optimize pressure drop, maintenance costs, and the service life of compressed air filters, thereby increasing utility and efficiency while reducing operating costs.
Reliability and Durability — Our compressed air filters are robust, resistant to varying temperatures and pressures, and designed for heavy-duty use. Maintenance is efficiently managed (filter elements, automatic venting, etc.).
| Filter type | Function | Examples of applications |
|---|---|---|
| Particulate: Coarse-particle filter | Filter solid particles such as dust, rust, sand. Protects downstream equipment. | Pre-compressor, air distribution, pneumatics, paint and coating systems. |
| Coalescing Compressed Air Filters | Collect oil and water droplets through coalescence (coalescing media); excess liquid is drained. | Air supply for pneumatic cylinders, process air, and tools. |
| Adsorption: Activated Carbon Compressed Air Filters | Removes oil vapors and odors; “polishes” compressed air. | Critical applications such as packaging, food processing, and laboratory environments. |
| Dew Point-Gas Filter Combinations | Lower the dew point to the desired level and prevent condensation; also remove oil and micro-contaminants. | Plumbing, instrumentation, coatings, textile processes. |
| Point-of-use compressed air filters | Compressed air filters installed directly at the point of use, for extra purity in critical areas. | Evaporation, spray painting, cleanrooms. |
An optimal filter solution requires customization. Here are the main criteria:
Requirements based on the end product and process
Determine the minimum air quality standards: What ISO class do you need for particles, water, and oil? (e.g., ISO 8573-1 Class 1:-:1 or Class 2:2:1). The purer the air, the stricter the filtration requirements.
Flow Rate and Pressure
Compressed air filters must be sized based on the air flow rate (m³/min or Nm³/h) and the operating pressure. Insufficient capacity leads to a pressure drop, which increases your energy consumption.
Temperature and Environment
Higher temperatures reduce filter performance, especially when removing oil mist. Compressed air filters must be able to withstand the environment in which they are installed.
Ease of Maintenance and Operating Costs
The frequency of element replacement, the presence of automatic condensate drainage, and compressed air filters with indicators or monitoring—these factors determine the TCO.
Safety and Regulations
In industries such as food, pharmaceuticals, and medical devices, there are legal and hygiene requirements. Ultimately, the filter must not only meet technical standards but also be certified.
High-quality compressed air filters are only part of the solution. JustAir offers:
Customized advice and audits: We analyze your existing compressed air system (air quality, components, pressure drop, contamination levels) to determine which compressed air filters and combinations are needed.
24/7 monitoring: sensors track pressure drop, dew point, oil contamination so that when a filter is near saturation, you can proactively replace – no surprises or unexpected downtime.
Fast delivery and inventory management: We ensure that you always have replacement filters (elements, cartridges) on hand—which is important for operational reliability.
Installation and certification: Proper installation is crucial—correct sealing, the correct sequence of compressed air filters, bypass safety, etc. We handle the installation and documentation.
Food and Beverages: Air that comes into contact with the final product must be guaranteed to be oil-free; filter combinations and dew point control ensure that bacterial growth, flavor contamination, or contamination of packaging are prevented.
Pharmaceutical and medical industries: Air quality is critical in the production of injectables, medical devices, or cleanrooms; any form of contamination can lead to product rejections or recalls.
Electronics and semiconductors: Dust particles in the air can damage microchips; Class Zero Plus compressed air filters prevent defects at the micron level.
Automotive and Paintwork: In spray booths, compressed air must be dry and oil-free to achieve a perfect coat of paint; oil aerosols cause imperfections and malfunctions.
At JustAir , we believe that clean compressed air isn’t just an optional extra, but the foundation of quality, reliability, and cost efficiency. Our compressed air filters make all the difference: fewer downtimes, cleaner products, and lower energy and maintenance costs.
Contact us today for a free air analysis or a customized quote. Protect your process, your product, and your profits
