Switch to Air-Ace safety respirator and save money.
The mask is produced by first class material that ensures a long lifetime of the mask.
The mouthpiece and head strap are available as spare parts. By exchanging these parts you get a “new” mask for a lot less money compared to buying a brand new one. This means that you don’t have to throw away the whole mask if for an example the head strap becomes loose like you have to with most other masks.
One Air-Ace filter easily outlasts several disposable masks and an economic winning will occur very quickly.
Disposable masks often come in boxes of 10-20pcs. If a box is located in a dusty environment many of them are hardly ever used since they become dusty and dirty from lying around. Instead they get thrown out without even having been used.
When buying the Air-Ace Box model you get 3pcs. of P2 (R) filters, 1pcs. of carbon nuisance filter and a dust proof storage box which protects the Air-Ace and filters when it is not in use. This prolongs the lifetime of the mask and filters.