Swiss Air TH3 PAPR Replacement Product

The Revolutionary TH3 PAPR System From Optrel.

Key Features

  • The pre-filter filter large particles out of the breathing air
  • A master filter of the very highest TH3 Filter class filters 99.8% of the pollutants from the air
  • No trespassing for aerosols, smoke, particles or viruses


Filter Guide


Why Optrel?

Every year Optrel deliver well over one hundred thousand occupational safety products. They are not a mass producer, they ensure that Almost every product is unique and tailored to the needs of the customer. The Optrel Swiss Air TH3 PAPR system is suitable for:

  • Welding
  • Grinding
  • Automative Industry
  • Building Industry
  • Chemical Industry
  • Refrigeration Industry
  • Food Industry
  • General Industry
  • Heavy Metal Industry
  • Industrial Cleaning Industry


We are the approved Southwest distributor for many welding brands, and hold a large range of products in stock. Come and visit our showroom.

Other Products From Optrel

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Get in touch! Our friendly sales team know the products we sell inside out and are happy to discuss them with you. You can use our chat feature, email or call us if you prefer. For all trade enquiries, please call our sales team.


Here at Inverter Fusion Ltd, we manufacture our own welding machines, and we service, repair and calibrate machines from any manufacturer. If you need spares or need a machine repaired, our fully trained engineers can help you. Read more here.