Heating ventilation and air conditioner filter with user customizable filter elements

This invention describes a heating and air conditioning filter that users can customize. Instead of buying a whole new filter, you can choose different filter materials and combine them with a reusable frame. The claims specifically describe a rectangular or square frame that holds these custom filter elements.

Why it matters: Advances in filter media manufacturing since 2023 could make a wider array of specialized filtration options more readily available and cost-effective for user customization.

Status: Not in forceListed as no longer active. The specific reason is not in the record we hold.
How hard to build: ModerateCustom frame molding, filter media

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