gas mask

  1. A

    Dräger CDR 4500 vs Dräger X-plore® 5500, Which one is better for clandestine chemistry?

    Question 
    ;)
  2. lazkalsai

    Which filter for gas mask you recommend?

    Can you recommend any types of filters that will be good for working with hydrogen bromide and HCl? Those come with mephedrone synthesis ( bromination in dichloromethane) by Marvin "Popcorn" Sutton
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