Mouthpieces make sharing your personal breathalyzer easy and hygienic. If you want second test soon after previous, it is advisable to use new, or at least not used soon, mouthpiece. Otherwise, residuals from previous test can impair the accuracy of the next test. Available in packs of 50, or 100 pcs, these individually wrapped plastic breathalyzer mouthpieces are easily removable from the wrap, washable and reusable. If breathalyzer is used for professional purposes, like controlling the employees, making on site tests, etc. mouthpieces are obligatory. For hygienic and accuracy reasons, every test have to be made with a new mouthpiece. Available in packs of 50 or 100 pcs, these individually wrapped plastic breathalyzer mouthpieces are easily removable from the cellophane wrap. For quantities greater than 1000, please contact us for special bulk pricing options.