Oxybreath Pro this product is an item used for hygiene and needs to be quality-checked, returns are not offered. It is for the benefit of the consumer as a no returns policy for a product of this nature helps keep up the quality. However, the manufacturers offer returns and refunds on damaged or defective products. You need to ship the product back to them within 30 days from the date of purchase, unopened and with the original packaging intact. For further queries, their customer support team can be contacted through phone or email.Click Here https://medium.com/@zylophrxus/oxybreath-pro-mask-breathing-disorders-air-quality-improvement-strategies-bac850f78f4a