Protect your pillows. Antimicrobial pillow protectors are a great way stave off allergies while you sleep. Zip off covers with Ultra Fresh ® anti-microbial treatment provide allergen barrier protection against mold, mildew, fungus and bacteria for a healthy night's rest. Polyester/cotton antimicrobial pillow protectors zip off for easy care. Recommended for allergy sufferers. Standard, queen and king sizes, sold in pairs. Machine wash and dry or hand wash and air dry. USA.