difference in performance if two purifiers in same location | Dyson Community
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Hi. I have 2 tp07 Dyson kept in the exact same location. One is 2 days old and one is 1 year old. Filters are fresh in both, the old one is gaping a PM2.5 reading of 90 and the new one is showing 374 … in same location. Please help me understand this 

 

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