This policy explains how Air Cleaners Guide researches, writes and updates its content.
Independence
Our editors decide what to cover and what to recommend. Manufacturers and retailers do not review or approve our articles before publication, and we do not accept payment for coverage. Affiliate commissions (see our Affiliate Disclosure) do not change our recommendations.
Research and sources
We base our guides on manufacturer manuals and specifications, U.S. EPA indoor air quality guidance, AHAM (CADR and room-size standards), ENERGY STAR, California Air Resources Board (ozone limits for air cleaners), U.S. Consumer Product Safety Commission and product safety labels. Where a claim matters for safety, health or a buying decision, we link to or name the source. When evidence is limited or mixed, we say so.
How we choose products
Buying guides and comparisons explain the selection criteria we used, such as features, specifications, compatibility, ease of cleaning or maintenance, safety information and published recalls. Specifications come from manufacturers and are checked against the product listing at the time of writing; they can change, so please confirm details before you buy.
We are clear about testing. Unless an article describes how we tested a product ourselves, our recommendations are based on research, published specifications and documentation, not hands-on testing. We never invent test results, star ratings, prices or customer reviews.
Use of AI tools
We may use AI tools to help with research summaries or first drafts. Every article is reviewed and edited by a person before publication, and that person is responsible for checking facts against sources.
Safety-sensitive topics
Read the product label and manual before using any cleaner or appliance. Never mix bleach with ammonia, vinegar or other cleaners, keep rooms ventilated, and store chemicals out of reach of children and pets. Unplug vacuums, purifiers and steam cleaners before cleaning or changing filters. Avoid ozone-generating "air purifiers" in occupied rooms, as the EPA advises, and talk to a doctor about asthma or allergy treatment: an air purifier is not a medical device.
Corrections and updates
If we find an error, we correct it. We show an updated date only when an article has actually been revised. To report an error, please use our Contact page.