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Optrel particle filter with pre-filter for the swiss air system (4088.402)
Genuine particle filter with an integrated pre-filter, made for the Optrel swiss air respiratory protection system. It is a key consumable: replacing it regularly keeps the top TH3 protection class, full system performance and uncompromised safety at work. It ensures a steady supply of clean, filtered air and protects the professional welder's health from fumes, dust and aerosols.
Key features
Highest filtration class
TH3 (EN 12941)
Integrated pre-filter
Longer service life of the main filter
Genuine spare part
100% compatibility guaranteed
Technology details
Certified TH3 filtration
The filter is designed to meet the highest European respiratory protection standards and reaches class TH3 under EN 12941. This means it retains at least 99.8% of all harmful solid and liquid particles in the air, such as welding fumes, metal dust, aerosols or oil mist. The high efficiency filter media cleans the air you breathe and creates a safe breathing zone even in the most polluted industrial environments. It is a basic investment in protecting your lungs and general health, and it reduces the risk of occupational disease.
Two-stage protection with pre-filter
A distinctive feature of this model is the integrated pre-filter, which acts as the first line of defence. It captures larger dust particles and contaminants before they reach the main filter cartridge. This two-stage design considerably slows the clogging of the main filter, which handles the finest and most hazardous particles. As a result, the whole cartridge lasts longer and needs replacing less often. That means lower running costs and fewer work stoppages.
Correct air flow
The swiss air system works by creating positive pressure in the half mask, which keeps contaminants from getting in from outside. A genuine, unclogged filter is essential to maintain the correct air flow (100-130 l/min) and constant positive pressure. A clean filter has minimal resistance, so the blower unit can run at optimum efficiency with lower energy use, which extends the run time on one battery charge. Regular filter replacement is an investment in consistent comfort, reliability and the full effectiveness of the whole protective system.
Technical specification: powered air system
| Feature | Value |
|---|---|
| Protection level | TH3 (to EN 12941) |
| Filtration efficiency | ≥ 99.8% of solid and liquid particles |
| Filter type | Particle filter with integrated pre-filter |
| Compatibility | Optrel swiss air respiratory protection system |
| Catalogue number | 4088.402 |
What you get in the set
- Particle filter with pre-filter for the Optrel swiss air system
Main applications
- Welding with all processes (MIG/MAG, TIG, MMA)
- Grinding and cutting metal
- Construction and demolition work
- Chemical, pharmaceutical and food industries
- Any work in environments with high concentrations of dust and fumes
About the Optrel brand
Optrel is a Swiss leader in welding protection innovation. For decades the brand has stood for uncompromising quality, advanced technology and a high level of safety, and professionals around the world trust it. By choosing genuine Optrel consumables, you can be sure that your protective system works at full, certified effectiveness and protects your health to strict Swiss standards.
