FIRST FILTER, PURE AND SIMPLE. First Filter is Northwest Ohio’s only full service filtration company. Locally owned and operated, First Filter is an independent distributor committed to providing quality products and superior customer service. A fully stocked warehouse allows for quick deliveries and customer pick ups. Special size filters and cut to order rolls and pads are also fabricated on site. First Filter has partnered with the industry’s leading equipment manufacturers for industrial ventilation and noise control.