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I have received my trueO2 filter, but it looks different than filters I have previously seen. How do I install it?

The trueO2 filter is placed in the opening of the air register, writing side first. The filter is made with zero-bypass edges to force all of the air received from the intake through the superior filter media (unlike typical air filters with a cardboard edge). Therefore, you may notice a little overhang from the filter frame – which is completely normal – but does not affect the closing of the register cover.

What is the difference between a trueO2 filter and a typical fiberglass or pleated filter?

Are trueO2 filters available in the size I need?

How often should I change my filters?

I see trueO2 has an auto-ship program. How does that work?

What are the benefits of changing to trueO2 Air Filters?