This is probably a regional thing: I don’t see the 3M 4251 or other disposable respirators for sale in the US. My guess is the cost difference you’re seeing is due to comparing a US-market (6200) vs UK-market (4251) masks on UK Amazon?
Probably (even just Amazon price differences, I haven’t looked elsewhere). 6200 is £18, one set of filters £11. 4251 is £20. Maybe it’s a false economy, just thinking about cost savings if you wanted to buy a handful of masks for family.
This is probably a regional thing: I don’t see the 3M 4251 or other disposable respirators for sale in the US. My guess is the cost difference you’re seeing is due to comparing a US-market (6200) vs UK-market (4251) masks on UK Amazon?
Probably (even just Amazon price differences, I haven’t looked elsewhere). 6200 is £18, one set of filters £11. 4251 is £20. Maybe it’s a false economy, just thinking about cost savings if you wanted to buy a handful of masks for family.