A compressed air filter removes contaminants such as water (droplets and dewpoint moisture), oil (aerosols and vapor) and solid particles. Without effective filtration, these contaminants can lead to damage to machinery, loss of quality in finished products, increased maintenance, unplanned downtime and higher energy costs. At JustAir, our filters guarantee that your compressed air system consistently meets the most stringent industry & ISO standards.
Class Zero Plus & ISO 8573-1 compliance – JustAir filters are designed to meet the highest purity classes of ISO 8573-1. For industries where absolute purity is required (food, pharmaceutical, electronics, medical applications), this means your air is free of oil, fumes and microscopic fine dust.
Oil-Free Technology & Continuous Monitoring 24/7 – Even with oil-free compressors, contaminants can enter through environment or piping. Our filters, combined with JustAir’s cloud-based monitoring, proactively alert you to deteriorating filter performance so you can take timely action.
Energy optimization & low total cost of ownership (TCO) – We optimize pressure drop, maintenance costs and filter life, increasing utility and efficiency while reducing operating costs.
Reliability & durability – Our filters are robust, resistant to variable temperatures and pressures, and designed for intensive use. Maintenance is efficiently arranged (filter elements, automatic venting, etc.).
| Filter type | Function | Examples of applications |
|---|---|---|
| Particulate / Coarse-Dirt Filter | Filter solid particles such as dust, rust, sand. Protects downstream equipment. | Pre-compressor, air distribution, pneumatics, paint & coating systems. |
| Coalescing filters. | Collect droplets of oil/water by adhesion (coalescing media); excess liquid is discharged. | Air supply for pneumatic cylinders, process air, tools. |
| Adsorption / Activated carbon filters. | Removes oil vapors and odors; provides “polishing” of compressed air. | Critical applications such as packaging, food, laboratory environments. |
| Dew point / gas filter combinations. | Lower dew point to desired level and prevent condensation; also remove oil dust and micro-pollutants. | Plumbing, instrumentation, coatings, textile processes. |
| Point-of-use filters. | Filters directly at point-of-use, for extra cleanliness in critical areas. | Evaporation, spray paints, clean-rooms. |
An optimal filter solution requires customization. Here are the main criteria:
Requirements from end product & process
Determine minimum air quality standards: what ISO class do you need for particulates, water & oil? (e.g. ISO 8573-1 class 1:-:1 or class 2:2:1). The purer the air, the more stringent the filtration requirements.
Flow & Pressure
Filters should be sized according to air output (m³/min / Nm³/h) and working pressure. Insufficient capacity leads to pressure drop, which increases your energy consumption.
Temperature & Environment
Higher temperatures reduce filter performance, especially for oil-vapor removal. Filters must withstand the environment in which they are installed.
Ease of maintenance & operating costs
Frequency of element replacement, presence of automatic condensate drain, filters with indicators or monitoring – these factors determine the TCO.
Safety & regulations
In sectors such as food, pharma, medical devices there are legal and hygiene requirements. Ultimately, the filter must not only comply technically, but also be certified.
Good filters are only one part of the solution. JustAir offers:
Customized advice & audits: we analyze your existing air system (air analysis, components, pressure loss, pollution levels), to predict which filters & 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 & inventory management: we make sure you have replacement filters (elements, cartridges) always available – important for operational reliability.
Installation & certification: correct assembly is crucial: correct sealing, sequence of filters, bypass safety, etc. We provide installation & documentation.
Food & beverage: air in contact with finished product must be guaranteed to be oil-free; filter combinations + dew point control prevent bacterial growth, flavor contamination or package contamination.
Pharmaceutical & medical industry: when manufacturing injectables, medical devices or cleanrooms, air quality is critical; any contamination can lead to rejects or recalls.
Electronics & semiconductors: dust/particles in air can damage microchips; Class Zero Plus filters prevent micro-level defects.
Auto & paint jobs: at spray booths, compressed air must be dry & oil-free to get a perfect paint job; oil aerosols cause blemishes/malfunctions.
At JustAir, we believe that clean compressed air is not just another option, but the basis for quality, reliability and cost efficiency. Our filters make the difference: less downtime, cleaner products, lower energy and maintenance costs.
➡️ Contact us today for a free air analysis or custom quote. Protect your process, your product and your profits
