Review on AllerEase Maximum Allergy Pillow Protector, 4 Pack, White - Enhance Sleep Quality and Defend Against Allergens with this 4 Count Set by Thomas Mertz

The product description says there are two protectors but I only received one. Here is the product description copied directly from the listing: Description If you wake up every morning with a stuffy or stuffy nose, it could be due to allergens in your pillows. With AllerEase protective pillows made of 100% cotton, it's easy to get a better, more restful night's sleep and wake up refreshed! Our pillowcases offer total allergen protection with pore sizes less than 10 microns to prevent common household allergens such as dust mites, pollen, pet dander and more from settling on pillows. This set of two pillowcases fits over 20" x 36" pillows.