grading system

Our Grading System

At By Purify, our commitment to providing you with the most accurate and trustworthy reviews of air purifiers and vacuum cleaners is rooted in a rigorous testing and research process.

With extensive experience to back our claims, our reviews are underpinned by a comprehensive and objective approach.

We’ve dedicated countless hours to meticulously assess over 30 different models of both vacuum cleaners and air purifiers at our state-of-the-art facilities in Chicago, IL.

Equipped to test various room sizes and environmental factors, these facilities ensure that our evaluations are not only thorough but also reflective of real-world scenarios.

Beyond basic performance, we scrutinize the effectiveness of smart features to help you make an informed decision.

Our research methodology extends beyond the laboratory, as we interview owners to gather real-life experiences and feedback, providing insights that bridge the gap between technical specifications and practical usage.

Furthermore

We meticulously analyze hundreds of reviews from diverse sources on the internet, taking into account user opinions and sentiments from various corners of the web.

In addition to this, we engage with support representatives, product managers, and engineers from the brands we review, gathering exclusive insights into product design and performance.

Our conversations with experts in appliance design allow us to delve into the technical aspects and innovations in air purifier and vacuum cleaner technology, ensuring that our reviews consider both the scientific and user-friendly aspects of these appliances.

We also consider the guidance of various industry experts to gauge the impact of different air purifiers on indoor environments.

Furthermore, our assessments are fortified by reviews from other trusted sources and reviewers, as well as independent studies and reports from well-regarded institutions like JD Power, American Customer Satisfaction Index, and Consumer Reports Testing Data.

Our commitment is to deliver well-informed and reliable assessments, helping you choose the ideal air purifier or vacuum cleaner to suit your specific needs.

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