The TH3 particulate filter removes 99.8% of welding fume particulates, smoke, aerosol and dust. The pre-filter removes larger dust and debris to extend the life of the particle filter.
The Swiss Air main filters should never be used without the filter seal, the seal must also be covered by its lubricant.
Genuine Optrel Swiss Air Particle Filter with Pre-Filter: 4088402 (Code: 73019)
