
Why and how we certify in-car cabin filters – a Q&A
What is it that makes some in-car cabin air filters better for the indoor environment than others, and where do we draw the line to decide to certify them?

Why and how we certify HVAC and furnace filters – a Q&A
What is it that makes some HVAC and furnace filters better for the indoor environment than others, and where do we draw the line to decide to certify an air filter?

Why and how we certify air cleaners – a Q&A
What is it that makes some air cleaners better for the indoor environment than others, and where do we draw the line to decide to certify an air cleaner?

Why and how we certify vacuum cleaners – a Q&A
What is it that makes some vacuum cleaners better for the indoor environment than others, and where do we draw the line to decide to certify a vacuum cleaner?

Why and how we certify washing machines – a Q&A
What is it that makes some washing machine better for the indoor environment than others, and where do we draw the line to decide to certify a washing machine?

Why and how we certify bedding – a Q&A
What is it that makes some bedding better for the indoor environment than others, and where do we draw the line to decide to certify a bedding product?
Why and how we certify fiberglass insulation – a Q&A
What is it that makes some insulation better for the indoor environment than others, and where do we draw the line to decide to certify insulation?
Why and how we certify flooring – a Q&A
What is it that makes some flooring better for the indoor environment than others, and where do we draw the line to decide to certify a flooring product?