Free Samples! by admin Monthly Specials, News & Updates Lab Supply is now offering free samples of PPE including caps, gloves, gowns, masks, shoe covers and sleeves that are seen in the store. We are also offering free Clear H2O 2oz cup samples as well. Now you can test these products out before purchasing to make sure the product is right for you! Please call us at 800-262-5258 if you would like a sample.