Um Review
Based on online research and 44 Um reviews, Um's overall score is 4.0 out of 5 stars. Um's review score is based on Um's customer ratings, its brand popularity, its price competitiveness, as well as the breadth and quality of features it offers to customers. The Um review table below incorporates summarizes 44 Um ratings on 3 features. You can also compare Um against popular alternatives like LIV On Face Masks, Parcil Safety and HydraFacial. Or you can view the top 50 brands in similar categories, such as health brands, medical supply tools and protective face mask brands.
Brand popularity
Payment options
Shipping & returns policies
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Company values, ethics & policies
Customer service & brand
Privacy policy & data security
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Seasonal sales & events
Um Review: Um Pros & Cons
Um (um.systems) is a smaller protective face mask brand which competes against other disposable face mask brands like LIV On Face Masks, Parcil Safety, HydraFacial, Honeywell PPE Store and Bona Fide Masks. Based on our in-depth Um review, when compared to its competitors, Um is a mid-range performing brand within its category. Read the full Um.systems review below for more details.
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Knoji has 44 Um reviews and ratings as of June 19, 2026. Knoji editors and the Knoji shopper community have reviewed Um and compared it against 265 top protective face masks brands, reviewing Um based on product and store features. Knoji reviews and ranks Um.systems and other protective face mask brands based on how many features each offers and based on a 5-star rating scale. Based on these factors and 44 Um reviews, Um earns an overall score of 4.0 out of 5.0 points. Um offers 3 total features. Um's review score also factors in its popularity, which is in the mid-range to lower-range compared to competing .
