The Optrel Swiss Air HEPA filter cartridge and pre-filter are designed for use with the Swiss Air (Powered Air Purifying Respirator) PAPR. These TH3P R SL particulate filters removes 99.8% of welding fume particulates, dust, smoke and aerosol. The pre-filter should always be fitted in front of the main filter, this ensures the larger particulates are removed first and drastically extends the life of the Swiss Air main filter.

Revolutionary TH3 blower respiratory protection system : TH3 certified particle master filter for 99.8% clean breathing air

Scope of delivery: No. 4088.400 particle filter swiss air including pre-filter / No. 4088.430 Set of 20

 99.8% cleaned :The master filter has the highest filter class TH3 and thus filters 99.8% of all pollutants from the air. That means no getting through for aerosols, smoke, particles or viruses. Powerful TH3 filter unit in an ultra-flat design.

Technical specifications: 

Filter type: TH3P R SL filter for TH3P system (EU) with pre-filter