To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
I bought one bulk for my family and loved it that I purchased another 100 for our employees. The quality, comfort and effectiveness are all five stars! It's hard to find effective disposable masks for what they're worth. But this one beats them all! It passes the candlelight test. I've tried wearing a regular medical mask and a cloth mask over it but performed the same test as just wearing one N94 mask.