3M M-306 Respiratory Helmet Headtop
- 3M M-306 respiratory helmet a M-300 Series headtop
- Lightweight and well balanced with fully adjustable head suspension
- A deflector allows users to direct the airflow inside the headtop for increased control and comfort
- Features a general purpose faceseal for construction, chemical applications and heavy industry
- Head protection EN397 essential for areas where hard hats are mandatory
- Visor design combines excellent peripheral down ward vision with good optical clarity
- Eye and face EN166 medium impact protection
- Straight forward care and maintenance
- For use with 3M Versaflo and 3M Jupiter with 3M BT-series breathing tubes
- When used with powered air offers TH3P assigned protection factor APF: 20 workplace exposure limit
The European standard for a complete powered air filtering device incorporating a face helmet, visor or head cover is EN12941. There is no separate classification for particle filters (P) in the standard EN12941 as the particle filter is part of the system classification. Standard EN12941 defines three classes of performance (TH1, TH2 and TH3). The numbers define the level of performance (inward leakage) and the pull strength of the breathing tubes and couplings within the classification. Inward leakage for classification TH1 is maximum 10%, for TH2 maximum 2% and for TH3 maximum 0.2%. Assigned Protection Factor Guide: (TH1P) - APF of 10 x Workplace Exposure Limit, (TH2P) - APF of 20 x Workplace Exposure Limit, (TH3P) - APF of 40 x Workplace Exposure Limit.
