7093C 3M Filter Testing for Particles Using PCE Particle Counter 

Excellent 👏🏼💪🏼greetings from Colombia

Hi Roberto. Love your videos. I'd love to see you test the mira particlemax filter. They are ULPA filters with Merv 20 and are supposed to be 99.9999+% filter rate which would make them the best on the market if it proved to be accurate. They are 40mm thread so mainly gas mask compatible. Thanks.