Scores based on sentiment analysis of topic-related comments
Best praise vs top criticism for Alen BreatheSmart 45i
“I have an Alen 75i and Alen 45i. They are incredibly quiet and work great. Complete game changer in air quality in my home.”
“I have two Alen air Flex, an Alen Air 45i, and a Germ Guardian (the specific model I have they don’t sell anymore, it’s a bigger unit). So I have one in the living room, one in the hall, one in the office, and one in my bedroom. I live in a 1,100 sqft apartment. I have a dust/mold allergy and hate smells. Now if we cook something yeah it still smells. At least I’m not smelling other people cooking or the off gassing from remodeled apartments etc.”
100 Reddit opinions analyzed • Last updated 2/24/2026